Common Weakness Enumeration
CWE-208
AllowedObservable Timing Discrepancy
Abstraction: Base · Status: Incomplete
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
392 vulnerabilities reference this CWE, most recent first.
CVE-2026-77696 (GCVE-0-2026-77696)
Vulnerability from cvelistv5 – Published: 2026-09-29 15:32 – Updated: 2026-09-29 16:51
VLAI
EPSS
VEX
Title
Timing Side-Channel in SM2 Signature Generation
Summary
Issue summary: SM2 signature generation uses non-constant-time arithmetic
on secret values, forming a timing side-channel.
Impact summary: An attacker able to measure SM2 signing times may learn
information about the per-signature secret nonce, which over many signatures
can, via a lattice / Hidden Number Problem attack, lead to recovery of the
private key.
CWE: CWE-208: Observable Timing Discrepancy
Description: SM2 signature generation computes the signature value using
variable-time BIGNUM operations on the secret nonce and the private key, so
the time taken to produce an SM2 signature depends on these secret values,
forming a timing side-channel.
Applications performing SM2 signature generation are affected on all
platforms.
FIPS Impact: no
SM2 is not a FIPS algorithm.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 16:51 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
Impacted products
Date Public
2026-09-29 14:21
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-77696",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:51:30.070097Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:51:33.618Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zj",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Vladimir Tokarev"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Dukhovni"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: SM2 signature generation uses non-constant-time arithmetic\u003cbr\u003eon secret values, forming a timing side-channel.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker able to measure SM2 signing times may learn\u003cbr\u003einformation about the per-signature secret nonce, which over many signatures\u003cbr\u003ecan, via a lattice / Hidden Number Problem attack, lead to recovery of the\u003cbr\u003eprivate key.\u003cbr\u003e\u003cbr\u003eCWE: CWE-208: Observable Timing Discrepancy\u003cbr\u003e\u003cbr\u003eDescription: SM2 signature generation computes the signature value using\u003cbr\u003evariable-time BIGNUM operations on the secret nonce and the private key, so\u003cbr\u003ethe time taken to produce an SM2 signature depends on these secret values,\u003cbr\u003eforming a timing side-channel.\u003cbr\u003e\u003cbr\u003eApplications performing SM2 signature generation are affected on all\u003cbr\u003eplatforms.\u003cbr\u003e\u003cbr\u003eFIPS Impact: no\u003cbr\u003eSM2 is not a FIPS algorithm."
}
],
"value": "Issue summary: SM2 signature generation uses non-constant-time arithmetic\non secret values, forming a timing side-channel.\n\nImpact summary: An attacker able to measure SM2 signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: SM2 signature generation computes the signature value using\nvariable-time BIGNUM operations on the secret nonce and the private key, so\nthe time taken to produce an SM2 signature depends on these secret values,\nforming a timing side-channel.\n\nApplications performing SM2 signature generation are affected on all\nplatforms.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208 Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:22.520Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/20b20628d39b2dcc4677194bd68c7c060fa598cb"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1c4aed808a7aea32d2d013049c2e0d9fef164fc9"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/6b90445a56b99a328ac1feba058abf976504f440"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/419f5cb519721dceed393dbc524d79e487c72e64"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Timing Side-Channel in SM2 Signature Generation",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-77696",
"datePublished": "2026-09-29T15:32:22.520Z",
"dateReserved": "2026-08-21T07:47:36.032Z",
"dateUpdated": "2026-09-29T16:51:33.618Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-77582 (GCVE-0-2026-77582)
Vulnerability from cvelistv5 – Published: 2026-09-21 16:43 – Updated: 2026-09-23 19:16
VLAI
EPSS
VEX
Title
Tinyauth: User enumeration attack by timing oracle
Summary
Tinyauth is an authentication and authorization server. Prior to 5.1.0, Tinyauth exposes a remotely observable timing difference between authentication attempts for existing and nonexistent local usernames. internal/controller/user_controller.go loginHandler and internal/middleware/context_middleware.go basicAuth return quickly after internal/service/auth_service.go reports a missing user, while an existing user causes bcrypt password verification work. Repeated measurements can therefore disclose valid usernames and support targeted credential attacks. This issue is fixed in version 5.1.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:16 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/tinyauthapp/tinyauth/security/… | x_refsource_CONFIRM |
| https://github.com/tinyauthapp/tinyauth/pull/1004 | x_refsource_MISC |
| https://github.com/tinyauthapp/tinyauth/commit/c2… | x_refsource_MISC |
| https://github.com/tinyauthapp/tinyauth/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tinyauthapp | tinyauth |
Affected:
< 5.1.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77582",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:16:31.589447Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T19:16:39.000Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "tinyauth",
"vendor": "tinyauthapp",
"versions": [
{
"status": "affected",
"version": "\u003c 5.1.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Tinyauth is an authentication and authorization server. Prior to 5.1.0, Tinyauth exposes a remotely observable timing difference between authentication attempts for existing and nonexistent local usernames. internal/controller/user_controller.go loginHandler and internal/middleware/context_middleware.go basicAuth return quickly after internal/service/auth_service.go reports a missing user, while an existing user causes bcrypt password verification work. Repeated measurements can therefore disclose valid usernames and support targeted credential attacks. This issue is fixed in version 5.1.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-21T16:43:43.175Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/pull/1004",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/pull/1004"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/commit/c22925c2fba981875d0a2b09dd3ee41c0ae4c310",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/commit/c22925c2fba981875d0a2b09dd3ee41c0ae4c310"
},
{
"name": "https://github.com/tinyauthapp/tinyauth/releases/tag/v5.1.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinyauthapp/tinyauth/releases/tag/v5.1.0"
}
],
"source": {
"advisory": "GHSA-456h-ww26-f758",
"discovery": "UNKNOWN"
},
"title": "Tinyauth: User enumeration attack by timing oracle"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-77582",
"datePublished": "2026-09-21T16:43:43.175Z",
"dateReserved": "2026-08-20T20:35:30.148Z",
"dateUpdated": "2026-09-23T19:16:39.000Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75589 (GCVE-0-2026-75589)
Vulnerability from cvelistv5 – Published: 2026-08-19 07:20 – Updated: 2026-08-26 19:44
VLAI
EPSS
VEX
Title
Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non-constant-time comparison in verify
Summary
Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non-constant-time comparison in verify.
Each of the three compares the signature carried in the message against the locally computed one with the eq operator, which returns as soon as the two strings differ. The time taken to reject a signature varies with the length of the matching prefix. RSA-SHA1 is not affected, as it verifies through the RSA key object rather than by comparing strings.
A client that can submit messages and time the replies may recover a valid signature one byte at a time rather than searching the whole signature space. Under PLAINTEXT the value compared against is the signature key itself, so the search recovers consumer_secret and token_secret.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 19:43 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-08-19T21:07:39.547Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/08/19/3"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-75589",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T19:43:43.373927Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T19:44:21.523Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"modules": [
"Net::OAuth"
],
"packageName": "Net-OAuth",
"packageURL": "pkg:cpan/Net-OAuth",
"programFiles": [
"lib/Net/OAuth/SignatureMethod/HMAC_SHA1.pm",
"lib/Net/OAuth/SignatureMethod/HMAC_SHA256.pm",
"lib/Net/OAuth/SignatureMethod/PLAINTEXT.pm"
],
"programRoutines": [
{
"name": "Net::OAuth::SignatureMethod::HMAC_SHA1::verify"
},
{
"name": "Net::OAuth::SignatureMethod::HMAC_SHA256::verify"
},
{
"name": "Net::OAuth::SignatureMethod::PLAINTEXT::verify"
}
],
"repo": "https://github.com/vurtdev/Net-OAuth",
"versions": [
{
"lessThan": "0.33",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non-constant-time comparison in verify.\n\nEach of the three compares the signature carried in the message against the locally computed one with the eq operator, which returns as soon as the two strings differ. The time taken to reject a signature varies with the length of the matching prefix. RSA-SHA1 is not affected, as it verifies through the RSA key object rather than by comparing strings.\n\nA client that can submit messages and time the replies may recover a valid signature one byte at a time rather than searching the whole signature space. Under PLAINTEXT the value compared against is the signature key itself, so the search recovers consumer_secret and token_secret."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208 Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T07:20:44.880Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://github.com/vurtdev/Net-OAuth/security/advisories/GHSA-g8xr-69p3-gw56"
},
{
"tags": [
"patch"
],
"url": "https://github.com/vurtdev/Net-OAuth/commit/a1a16b58add85668ef4fcda642a486ceed098eba.patch"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/RRWO/Net-OAuth-0.33/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to Net-OAuth 0.33 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non-constant-time comparison in verify",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-75589",
"datePublished": "2026-08-19T07:20:44.880Z",
"dateReserved": "2026-08-17T22:30:33.360Z",
"dateUpdated": "2026-08-26T19:44:21.523Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-72701 (GCVE-0-2026-72701)
Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-27 14:54
VLAI
EPSS
VEX
Title
Grav CMS before 2.0.16 Timing Attack via verifyNonce
Summary
Grav CMS before 2.0.16 contains a timing vulnerability in Utils::verifyNonce() that uses non-constant-time string comparison with the === operator instead of hash_equals() for CSRF nonce validation. Attackers can measure response timing differences to recover valid nonce values byte-by-byte through multiple requests, weakening CSRF protection below its intended security margin.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 14:53 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/getgrav/grav/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/grav-cms-bef… | third-party-advisory |
Impacted products
Date Public
2026-08-10 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-72701",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-27T14:53:40.236596Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T14:54:28.112Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/getgrav/grav/security/advisories/GHSA-38p6-h87p-r4cg"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "grav",
"vendor": "getgrav",
"versions": [
{
"lessThan": "2.0.16",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.0.16",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "alham-rizvi"
}
],
"datePublic": "2026-08-10T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Grav CMS before 2.0.16 contains a timing vulnerability in Utils::verifyNonce() that uses non-constant-time string comparison with the === operator instead of hash_equals() for CSRF nonce validation. Attackers can measure response timing differences to recover valid nonce values byte-by-byte through multiple requests, weakening CSRF protection below its intended security margin."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T01:30:23.965Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-38p6-h87p-r4cg)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/getgrav/grav/security/advisories/GHSA-38p6-h87p-r4cg"
},
{
"name": "VulnCheck Advisory: Grav CMS before 2.0.16 Timing Attack via verifyNonce",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/grav-cms-before-timing-attack-via-verifynonce"
}
],
"title": "Grav CMS before 2.0.16 Timing Attack via verifyNonce",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-72701",
"datePublished": "2026-08-25T01:30:23.965Z",
"dateReserved": "2026-08-10T13:02:20.829Z",
"dateUpdated": "2026-08-27T14:54:28.112Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-72700 (GCVE-0-2026-72700)
Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-25 17:25
VLAI
EPSS
VEX
Title
Grav before 3.9.1 Timing Attack via Non-Constant-Time Token Comparison
Summary
The getgrav/grav-plugin-login Composer plugin before 3.9.1 (used by Grav) compares password reset and account activation tokens using a non-constant-time === string comparison instead of hash_equals() in classes/Controller.php (taskReset()) and login.php (activation handler). Because the token-submission endpoint (taskReset) also lacks rate limiting, an attacker could in principle send repeated token guesses against a known username and use the timing differences to attempt to recover a valid token, though the vendor rates the practical exploitability as low and no end-to-end network exploit has been demonstrated.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 17:25 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/getgrav/grav/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/grav-before-… | third-party-advisory |
Impacted products
Date Public
2026-08-10 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-72700",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T17:25:29.731150Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T17:25:36.693Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/getgrav/grav/security/advisories/GHSA-x239-6jqx-5hjh"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "grav",
"vendor": "getgrav",
"versions": [
{
"lessThan": "3.9.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.9.1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*",
"versionEndExcluding": "3.9.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "alham-rizvi"
}
],
"datePublic": "2026-08-10T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "The getgrav/grav-plugin-login Composer plugin before 3.9.1 (used by Grav) compares password reset and account activation tokens using a non-constant-time === string comparison instead of hash_equals() in classes/Controller.php (taskReset()) and login.php (activation handler). Because the token-submission endpoint (taskReset) also lacks rate limiting, an attacker could in principle send repeated token guesses against a known username and use the timing differences to attempt to recover a valid token, though the vendor rates the practical exploitability as low and no end-to-end network exploit has been demonstrated."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T01:30:22.914Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-x239-6jqx-5hjh)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/getgrav/grav/security/advisories/GHSA-x239-6jqx-5hjh"
},
{
"name": "VulnCheck Advisory: Grav before 3.9.1 Timing Attack via Non-Constant-Time Token Comparison",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/grav-before-timing-attack-via-non-constant-time-token-comparison"
}
],
"title": "Grav before 3.9.1 Timing Attack via Non-Constant-Time Token Comparison",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-72700",
"datePublished": "2026-08-25T01:30:22.914Z",
"dateReserved": "2026-08-10T13:02:20.829Z",
"dateUpdated": "2026-08-25T17:25:36.693Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-70658 (GCVE-0-2026-70658)
Vulnerability from cvelistv5 – Published: 2026-09-14 17:14 – Updated: 2026-09-14 18:57
VLAI
EPSS
VEX
Title
pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier
Summary
Pay is a payments engine for Ruby on Rails 6.0 and higher. Prior to 11.6.2, Pay::Webhooks::PaddleBillingController#valid_signature? in app/controllers/pay/webhooks/paddle_billing_controller.rb compares the computed 64-character SHA-256 HMAC with the attacker-controlled h1 token from the Paddle-Signature header using Ruby String#==. An unauthenticated remote attacker who can repeatedly submit requests to /pay/webhooks/paddle_billing and obtain sufficiently precise timing measurements can infer matching digest prefixes and recover a valid signature. A forged accepted webhook is enqueued through Pay::Webhooks::ProcessJob and can cause a host application to update billing state, provision paid features, record refunds, or trigger customer notifications. This issue is fixed in version 11.6.2.
Severity
7.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 18:57 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pay-rails/pay/security/advisor… | x_refsource_CONFIRM |
| https://github.com/pay-rails/pay/commit/ba6494109… | x_refsource_MISC |
| https://github.com/pay-rails/pay/releases/tag/v11.6.2 | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-70658",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-14T18:57:23.905589Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T18:57:30.947Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "pay",
"vendor": "pay-rails",
"versions": [
{
"status": "affected",
"version": "\u003c 11.6.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Pay is a payments engine for Ruby on Rails 6.0 and higher. Prior to 11.6.2, Pay::Webhooks::PaddleBillingController#valid_signature? in app/controllers/pay/webhooks/paddle_billing_controller.rb compares the computed 64-character SHA-256 HMAC with the attacker-controlled h1 token from the Paddle-Signature header using Ruby String#==. An unauthenticated remote attacker who can repeatedly submit requests to /pay/webhooks/paddle_billing and obtain sufficiently precise timing measurements can infer matching digest prefixes and recover a valid signature. A forged accepted webhook is enqueued through Pay::Webhooks::ProcessJob and can cause a host application to update billing state, provision paid features, record refunds, or trigger customer notifications. This issue is fixed in version 11.6.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T17:14:57.207Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9"
},
{
"name": "https://github.com/pay-rails/pay/commit/ba6494109d88209fba2a4df2d9d6373fe81ed805",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pay-rails/pay/commit/ba6494109d88209fba2a4df2d9d6373fe81ed805"
},
{
"name": "https://github.com/pay-rails/pay/releases/tag/v11.6.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pay-rails/pay/releases/tag/v11.6.2"
}
],
"source": {
"advisory": "GHSA-mjgf-xj26-9qf9",
"discovery": "UNKNOWN"
},
"title": "pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-70658",
"datePublished": "2026-09-14T17:14:57.207Z",
"dateReserved": "2026-08-04T21:48:08.613Z",
"dateUpdated": "2026-09-14T18:57:30.947Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-69247 (GCVE-0-2026-69247)
Vulnerability from cvelistv5 – Published: 2026-08-03 21:16 – Updated: 2026-08-04 14:09
VLAI
EPSS
VEX
Title
cryptography: PKCS#7 EnvelopedData decryption exposes a Bleichenbacher oracle through distinguishable errors and timing
Summary
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo's encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outcome gives the attacker a Bleichenbacher oracle against the content-encryption key. Decryption ran as RSA PKCS#1 v1.5 decrypt of encryptedKey, build an AES cipher from the result, then AES-CBC decrypt and PKCS#7 unpad. Invalid RSA padding, a valid padding with a bad key length, a correct length with a wrong key, and the real key each failed or succeeded differently. Case 1 is reachable only where the linked library lacks implicit rejection: OpenSSL 3.0 and 3.1, LibreSSL, and BoringSSL. Exploitation requires a service that auto-decrypts untrusted EnvelopedData matching the victim certificate and answers adaptively at high volume, such as an S/MIME gateway or mail filter. This issue is fixed in 50.0.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:09 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pyca/cryptography/security/adv… | x_refsource_CONFIRM |
| https://github.com/pyca/cryptography/pull/15369 | x_refsource_MISC |
| https://github.com/pyca/cryptography/commit/53fcc… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pyca | cryptography |
Affected:
>= 44.0.0, < 50.0.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-69247",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-04T14:09:18.204828Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-04T14:09:24.615Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "cryptography",
"vendor": "pyca",
"versions": [
{
"status": "affected",
"version": "\u003e= 44.0.0, \u003c 50.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0, pkcs7_decrypt_der, pkcs7_decrypt_pem, and pkcs7_decrypt_smime reported the outcome of decrypting a RecipientInfo\u0027s encryptedKey in several distinguishable ways, one of which disclosed the exact length recovered from the RSA operation. The same distinction was also observable by timing. An application that decrypts attacker-supplied EnvelopedData and reflects the outcome gives the attacker a Bleichenbacher oracle against the content-encryption key. Decryption ran as RSA PKCS#1 v1.5 decrypt of encryptedKey, build an AES cipher from the result, then AES-CBC decrypt and PKCS#7 unpad. Invalid RSA padding, a valid padding with a bad key length, a correct length with a wrong key, and the real key each failed or succeeded differently. Case 1 is reachable only where the linked library lacks implicit rejection: OpenSSL 3.0 and 3.1, LibreSSL, and BoringSSL. Exploitation requires a service that auto-decrypts untrusted EnvelopedData matching the victim certificate and answers adaptively at high volume, such as an S/MIME gateway or mail filter. This issue is fixed in 50.0.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-209",
"description": "CWE-209: Generation of Error Message Containing Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-03T21:16:32.047Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pyca/cryptography/security/advisories/GHSA-g6cj-pr64-35w5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pyca/cryptography/security/advisories/GHSA-g6cj-pr64-35w5"
},
{
"name": "https://github.com/pyca/cryptography/pull/15369",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pyca/cryptography/pull/15369"
},
{
"name": "https://github.com/pyca/cryptography/commit/53fccd93413a8d7f07d6d8999681f27b75cffa3f",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pyca/cryptography/commit/53fccd93413a8d7f07d6d8999681f27b75cffa3f"
}
],
"source": {
"advisory": "GHSA-g6cj-pr64-35w5",
"discovery": "UNKNOWN"
},
"title": "cryptography: PKCS#7 EnvelopedData decryption exposes a Bleichenbacher oracle through distinguishable errors and timing"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-69247",
"datePublished": "2026-08-03T21:16:32.047Z",
"dateReserved": "2026-08-03T19:54:19.852Z",
"dateUpdated": "2026-08-04T14:09:24.615Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63132 (GCVE-0-2026-63132)
Vulnerability from cvelistv5 – Published: 2026-09-23 17:59 – Updated: 2026-09-23 19:16
VLAI
EPSS
VEX
Title
OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack
Summary
OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token. The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:13 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/openbao/openbao/security/advis… | x_refsource_CONFIRM |
| https://github.com/openbao/openbao/pull/3388 | x_refsource_MISC |
| https://github.com/openbao/openbao/pull/3472 | x_refsource_MISC |
| https://github.com/openbao/openbao/commit/0f2d90c… | x_refsource_MISC |
| https://github.com/openbao/openbao/commit/763625a… | x_refsource_MISC |
| https://github.com/hashicorp/vault/blob/main/CHAN… | x_refsource_MISC |
| https://github.com/openbao/openbao/releases/tag/v2.6.0 | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-63132",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:13:35.308605Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T19:16:11.327Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "openbao",
"vendor": "openbao",
"versions": [
{
"status": "affected",
"version": "\u003c 2.6.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao\u0027s handleLogicalRecovery path in http/logical.go compared the highly privileged recovery token with ordinary string equality. A remote unauthenticated attacker able to make repeated recovery mode requests and measure response timing could infer the recovery token. The recovered token could then authorize recovery mode operations that read or modify OpenBao data. This issue is fixed in version 2.6.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T17:59:19.639Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/openbao/openbao/security/advisories/GHSA-34fc-gh42-pj53"
},
{
"name": "https://github.com/openbao/openbao/pull/3388",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openbao/openbao/pull/3388"
},
{
"name": "https://github.com/openbao/openbao/pull/3472",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openbao/openbao/pull/3472"
},
{
"name": "https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949a8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openbao/openbao/commit/0f2d90c331f25d1c6cd108638da03f4c7bd949a8"
},
{
"name": "https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d287a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openbao/openbao/commit/763625a2072103ea9e9122f2a8408e0b988d287a"
},
{
"name": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203"
},
{
"name": "https://github.com/openbao/openbao/releases/tag/v2.6.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/openbao/openbao/releases/tag/v2.6.0"
}
],
"source": {
"advisory": "GHSA-34fc-gh42-pj53",
"discovery": "UNKNOWN"
},
"title": "OpenBao\u0027s Recovery Mode Vulnerable To Token Leakage via Timing Attack"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-63132",
"datePublished": "2026-09-23T17:59:19.639Z",
"dateReserved": "2026-07-15T16:54:55.817Z",
"dateUpdated": "2026-09-23T19:16:11.327Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-59218 (GCVE-0-2026-59218)
Vulnerability from cvelistv5 – Published: 2026-07-09 15:53 – Updated: 2026-07-09 17:50
VLAI
EPSS
VEX
Title
Open WebUI: Account enumeration via observable login timing discrepancy
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the /api/v1/auths/signin endpoint looked users up by email and only ran bcrypt password verification when a credential existed, making registered-account attempts measurably slower than missing-email attempts and allowing unauthenticated account enumeration. This issue is fixed in version 0.10.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 17:50 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
| https://github.com/open-webui/open-webui/pull/26385 | x_refsource_MISC |
| https://github.com/open-webui/open-webui/commit/9… | x_refsource_MISC |
| https://github.com/open-webui/open-webui/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.10.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-59218",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-09T17:50:34.890081Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-09T17:50:41.900Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "open-webui",
"vendor": "open-webui",
"versions": [
{
"status": "affected",
"version": "\u003c 0.10.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the /api/v1/auths/signin endpoint looked users up by email and only ran bcrypt password verification when a credential existed, making registered-account attempts measurably slower than missing-email attempts and allowing unauthenticated account enumeration. This issue is fixed in version 0.10.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-09T15:53:54.653Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/open-webui/open-webui/security/advisories/GHSA-7rw5-9f7q-xj36",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-7rw5-9f7q-xj36"
},
{
"name": "https://github.com/open-webui/open-webui/pull/26385",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-webui/open-webui/pull/26385"
},
{
"name": "https://github.com/open-webui/open-webui/commit/993e74912199c66c522f08ec81abe31d76985e39",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-webui/open-webui/commit/993e74912199c66c522f08ec81abe31d76985e39"
},
{
"name": "https://github.com/open-webui/open-webui/releases/tag/v0.10.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-webui/open-webui/releases/tag/v0.10.0"
}
],
"source": {
"advisory": "GHSA-7rw5-9f7q-xj36",
"discovery": "UNKNOWN"
},
"title": "Open WebUI: Account enumeration via observable login timing discrepancy"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-59218",
"datePublished": "2026-07-09T15:53:54.653Z",
"dateReserved": "2026-07-02T21:05:02.924Z",
"dateUpdated": "2026-07-09T17:50:41.900Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-58272 (GCVE-0-2026-58272)
Vulnerability from cvelistv5 – Published: 2026-09-21 20:31 – Updated: 2026-09-23 19:42
VLAI
EPSS
VEX
Title
Sync-in Server has Username/Login Enumeration via Timing Side-Channel on POST /api/auth/login (incomplete fix of the prior timing-attack advisory)
Summary
Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Versions prior to 2.4.1 contain an observable timing discrepancy in the login endpoint because authentication attempts for nonexistent accounts return without performing the bcrypt comparison used for existing accounts. An unauthenticated attacker can measure response times to enumerate valid usernames or email addresses, facilitating credential-stuffing, password-spraying, and phishing attacks. Version 2.4.1 contains a patch.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:41 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Sync-in/server/security/adviso… | x_refsource_CONFIRM |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-58272",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-23T19:41:58.798280Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T19:42:05.134Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/Sync-in/server/security/advisories/GHSA-29hq-23m2-2j47"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "server",
"vendor": "Sync-in",
"versions": [
{
"status": "affected",
"version": "\u003c 2.4.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Versions prior to 2.4.1 contain an observable timing discrepancy in the login endpoint because authentication attempts for nonexistent accounts return without performing the bcrypt comparison used for existing accounts. An unauthenticated attacker can measure response times to enumerate valid usernames or email addresses, facilitating credential-stuffing, password-spraying, and phishing attacks. Version 2.4.1 contains a patch."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208: Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-21T20:31:46.272Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/Sync-in/server/security/advisories/GHSA-29hq-23m2-2j47",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Sync-in/server/security/advisories/GHSA-29hq-23m2-2j47"
}
],
"source": {
"advisory": "GHSA-29hq-23m2-2j47",
"discovery": "UNKNOWN"
},
"title": "Sync-in Server has Username/Login Enumeration via Timing Side-Channel on POST /api/auth/login (incomplete fix of the prior timing-attack advisory)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-58272",
"datePublished": "2026-09-21T20:31:46.272Z",
"dateReserved": "2026-06-29T21:54:30.332Z",
"dateUpdated": "2026-09-23T19:42:05.134Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
No mitigation information available for this CWE.
CAPEC-462: Cross-Domain Search Timing
An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.
CAPEC-541: Application Fingerprinting
An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.
CAPEC-580: System Footprinting
An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.