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.
388 vulnerabilities reference this CWE, most recent first.
CVE-2026-95270 (GCVE-0-2026-95270)
Vulnerability from cvelistv5 – Published: 2026-09-22 11:15 – Updated: 2026-09-22 13:03
VLAI
EPSS
VEX
Title
dgtlmoon changedetection.io Hash Comparison flask_app.py check_password timing discrepancy
Summary
A flaw has been found in dgtlmoon changedetection.io up to 0.60.7. The affected element is the function check_password of the file changedetectionio/flask_app.py of the component Hash Comparison. This manipulation of the argument Password causes observable timing discrepancy. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 13:03 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408338 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408338/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-95270 | third-party-advisory |
| https://vuldb.com/submit/896575 | third-party-advisory |
| https://github.com/herantong/cve/blob/main/Timing… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| dgtlmoon | changedetection.io |
Affected:
0.60.0
Affected: 0.60.1 Affected: 0.60.2 Affected: 0.60.3 Affected: 0.60.4 Affected: 0.60.5 Affected: 0.60.6 Affected: 0.60.7 cpe:2.3:a:dgtlmoon:changedetection.io:*:*:*:*:*:*:*:* |
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CVE-2026-88010 (GCVE-0-2026-88010)
Vulnerability from cvelistv5 – Published: 2026-09-22 15:38 – Updated: 2026-09-22 16:00
VLAI
EPSS
VEX
Title
Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle
Summary
Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.7.13, checkPassword in pkg/middlewares/auth/basic_auth.go constructs the BasicAuth singleflight key from the submitted password and stored secret. Concurrent requests for absent usernames therefore coalesce on one key while configured usernames perform separate password hashes, creating an unauthenticated timing discrepancy that reveals whether a username exists. Sequential checks remain cost-equalized, Traefik v2 and Digest authentication are not affected, and the issue does not disclose credentials or bypass authentication. This issue is fixed in version 3.7.13.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:59 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/traefik/traefik/security/advis… | x_refsource_CONFIRM |
| https://github.com/traefik/traefik/pull/13816 | x_refsource_MISC |
| https://github.com/traefik/traefik/commit/ddc1bf4… | x_refsource_MISC |
| https://github.com/traefik/traefik/releases/tag/v3.7.13 | x_refsource_MISC |
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CVE-2026-87737 (GCVE-0-2026-87737)
Vulnerability from cvelistv5 – Published: 2026-09-09 04:21 – Updated: 2026-09-09 13:10
VLAI
EPSS
VEX
Summary
An issue was discovered in the mirage-crypto-ec package before 2.4.0 for OCaml. There is a timing side channel for NIST elliptic-curve scalar multiplication: the time required for a lookup can depend on a secret.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 13:09 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OCaml | mirage-crypto-ec |
Affected:
0 , < 2.4.0
(semver)
|
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CVE-2026-85725 (GCVE-0-2026-85725)
Vulnerability from cvelistv5 – Published: 2026-09-22 16:16 – Updated: 2026-09-25 23:43
VLAI
EPSS
VEX
Title
LightRAG: Plaintext Passwords Compared Without Constant-Time Function
Summary
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, verify_password in lightrag/api/passwords.py compares plaintext AUTH_ACCOUNTS password values with Python's == operator. The comparison can return after the first mismatching byte, creating response-time differences based on password length and matching prefixes. A network attacker with sufficiently low-latency access can repeatedly query the /login endpoint and use the timing oracle to recover a plaintext-configured password character by character. Deployments using bcrypt-prefixed password values are not affected by this comparison path. This issue is fixed in version 1.5.5.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 23:42 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/HKUDS/LightRAG/security/adviso… | x_refsource_CONFIRM |
| https://github.com/HKUDS/LightRAG/pull/3423 | x_refsource_MISC |
| https://github.com/HKUDS/LightRAG/commit/89849c3e… | x_refsource_MISC |
| https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5 | x_refsource_MISC |
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CVE-2026-84308 (GCVE-0-2026-84308)
Vulnerability from cvelistv5 – Published: 2026-09-01 19:28 – Updated: 2026-09-03 17:41
VLAI
EPSS
VEX
Title
phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery
Summary
phpseclib is a PHP secure communications library. Prior to 3.0.57 and 4.0.1, pure-PHP X25519 scalar multiplication in phpseclib/Math/PrimeField/Integer.php performs data-dependent conditional modular reductions in add() and subtract(). During the Montgomery ladder in phpseclib/Crypt/EC/BaseCurves/Montgomery.php, the reduction behavior of each step depends on the secret scalar prefix, creating per-step timing and libgmp call-count observations that can reveal a reused 251-bit clamped private scalar. The phpseclib/Crypt/EC/Formats/Keys/MontgomeryPrivate.php derivation path invokes the pure-PHP multiplication without a native-engine check, while phpseclib/Crypt/EC/Formats/Keys/PKCS8.php reaches it when ext-sodium is unavailable. Exploitation requires a reused or long-lived X25519 private key, knowledge of the corresponding public key, execution of the pure-PHP path, and a local observer capable of resolving individual ladder steps or libgmp entry-point calls. Ephemeral X25519 keys, including phpseclib's normal SSH exchange path, are not affected. Recovery of the scalar permanently compromises operations that reuse that key. This issue is fixed in versions 3.0.57 and 4.0.1.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 17:41 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/phpseclib/phpseclib/security/a… | x_refsource_CONFIRM |
| https://github.com/phpseclib/phpseclib/commit/fb5… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
| https://github.com/phpseclib/phpseclib/releases/t… | x_refsource_MISC |
Impacted products
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CVE-2026-82449 (GCVE-0-2026-82449)
Vulnerability from cvelistv5 – Published: 2026-08-29 12:05 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
Cockpit CMS before 2.14.1 Account Enumeration via Auth Timing
Summary
Cockpit CMS before 2.14.1 contains an account enumeration vulnerability in the auth check endpoint due to timing discrepancies in password verification. Attackers can measure response times across multiple requests to determine which accounts exist by observing that existing accounts trigger bcrypt verification while non-existent accounts return immediately.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:34 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/Cockpit-HQ/Cockpit/commit/5d65… | patch |
| https://github.com/Cockpit-HQ/Cockpit | product |
| https://github.com/Cockpit-HQ/Cockpit/blob/2.14.0… | technical-description |
| https://link.mateocallec.com/MFC-2026-001 | third-party-advisory |
| https://www.vulncheck.com/advisories/cockpit-cms-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cockpit-hq | cockpit |
Affected:
0 , < 2.14.1
(semver)
Unaffected: 2.14.1 (semver) |
Date Public
2026-06-27 00:00
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CVE-2026-81159 (GCVE-0-2026-81159)
Vulnerability from cvelistv5 – Published: 2026-09-02 12:32 – Updated: 2026-09-02 18:59
VLAI
EPSS
VEX
Title
Commerce CyberSource - Moderately critical - Insufficient input validation - SA-CONTRIB-2026-106
Summary
Observable Timing Discrepancy vulnerability in Drupal Commerce CyberSource allows Brute Force. This issue affects Commerce CyberSource versions: from 0.0.0 to 1.10.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 18:59 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Drupal | Commerce CyberSource |
Affected:
0.0.0 , < 1.10.0
(semver)
|
Date Public
2026-08-26 17:35
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CVE-2026-80199 (GCVE-0-2026-80199)
Vulnerability from cvelistv5 – Published: 2026-08-25 23:19 – Updated: 2026-08-26 12:12
VLAI
EPSS
VEX
Title
Kimai before 2.54.0 Username Enumeration via Timing Oracle
Summary
Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username enumeration with no login throttling protection.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 12:07 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kimai/kimai/security/advisorie… | vendor-advisory |
| https://www.vulncheck.com/advisories/kimai-before… | third-party-advisory |
Impacted products
Date Public
2026-04-16 00:00
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CVE-2026-78500 (GCVE-0-2026-78500)
Vulnerability from cvelistv5 – Published: 2026-08-27 23:26 – Updated: 2026-08-28 16:37
VLAI
EPSS
VEX
Title
Dimension Blind SSRF via Database Test Connection Feature
Summary
A blind server-side request forgery (SSRF) vulnerability WatchGuard Dimension Database Server Test configuration allows an authenticated privileged attacker to enumerate exposed network services on adjacent network systems.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 16:36 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-78500 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Dimension |
Affected:
2.0 , < 2.3.1
(semver)
cpe:2.3:a:watchguard:dimension:*:*:*:*:*:*:*:* |
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CVE-2026-77987 (GCVE-0-2026-77987)
Vulnerability from cvelistv5 – Published: 2026-09-22 20:43 – Updated: 2026-09-23 15:26
VLAI
EPSS
VEX
Title
GitHub Enterprise Server notebook viewer vulnerable to Server-side request forgery
Summary
A server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server. The notebook viewer validated the scheme and host of a user-supplied URL but did not validate the port, allowing requests to be directed to internal services listening on other ports of the same appliance. Response bodies were not returned to the requester, but response timing acted as an oracle that allowed instance secrets to be extracted character by character. An extracted secret could then be used in a separate interaction with an internal service to obtain remote code execution on the appliance. Exploitation required network access to the instance and was unauthenticated when private mode was disabled, or required any authenticated user when private mode was enabled. This vulnerability affected GitHub Enterprise Server versions 3.17 through 3.22 and was fixed in versions 3.22.1, 3.21.6, 3.20.8, 3.19.12, 3.18.15, and 3.17.21. This vulnerability was reported through the GitHub Bug Bounty program.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 15:26 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://docs.github.com/en/enterprise-server@3.17… | release-notes |
| https://docs.github.com/en/enterprise-server@3.18… | release-notes |
| https://docs.github.com/en/enterprise-server@3.19… | release-notes |
| https://docs.github.com/en/enterprise-server@3.20… | release-notes |
| https://docs.github.com/en/enterprise-server@3.21… | release-notes |
| https://docs.github.com/en/enterprise-server@3.22… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GitHub | Enterprise Server |
Affected:
3.17.0 , < 3.17.*
(semver)
Affected: 3.18.0 , < 3.18.* (semver) Affected: 3.19.0 , < 3.19.* (semver) Affected: 3.20.0 , < 3.20.* (semver) Affected: 3.21.0 , < 3.21.* (semver) Affected: 3.22.0 , < 3.22.* (semver) |
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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.