CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
2267 vulnerabilities reference this CWE, most recent first.
GHSA-JG6G-8J59-VR29
Vulnerability from github – Published: 2022-02-25 00:00 – Updated: 2022-03-26 00:01Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.
{
"affected": [],
"aliases": [
"CVE-2021-44532"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-24T19:15:00Z",
"severity": "MODERATE"
},
"details": "Node.js \u003c 12.22.9, \u003c 14.18.3, \u003c 16.13.2, and \u003c 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.",
"id": "GHSA-jg6g-8j59-vr29",
"modified": "2022-03-26T00:01:03Z",
"published": "2022-02-25T00:00:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44532"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/1429694"
},
{
"type": "WEB",
"url": "https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220325-0007"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5170"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JGXC-QHW9-RF7C
Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-07-14 18:31An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can capture sensitive device information.
The Prisma Access Agent on macOS, Windows, Linux and iOS are not affected.
{
"affected": [],
"aliases": [
"CVE-2026-0248"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-13T19:16:58Z",
"severity": "MODERATE"
},
"details": "An improper certificate validation vulnerability in the Prisma Access Agent\u00ae for Android and Chrome OS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can capture sensitive device information.\n\n\n\nThe Prisma Access Agent on macOS, Windows, Linux and iOS are not affected.",
"id": "GHSA-jgxc-qhw9-rf7c",
"modified": "2026-07-14T18:31:45Z",
"published": "2026-05-13T21:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0248"
},
{
"type": "WEB",
"url": "https://security.paloaltonetworks.com/CVE-2026-0248"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:D/RE:M/U:Amber",
"type": "CVSS_V4"
}
]
}
GHSA-JH3V-HF9J-X8X3
Vulnerability from github – Published: 2022-05-13 01:04 – Updated: 2022-05-13 01:04EMC RSA BSAFE Cert-C before 2.9.0.5 contains a potential improper certificate processing vulnerability.
{
"affected": [],
"aliases": [
"CVE-2017-4981"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-14T21:29:00Z",
"severity": "HIGH"
},
"details": "EMC RSA BSAFE Cert-C before 2.9.0.5 contains a potential improper certificate processing vulnerability.",
"id": "GHSA-jh3v-hf9j-x8x3",
"modified": "2022-05-13T01:04:36Z",
"published": "2022-05-13T01:04:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-4981"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/540720/30/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99044"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038695"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JH4V-GQWQ-HFRR
Vulnerability from github – Published: 2022-05-24 19:21 – Updated: 2025-11-03 21:30When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.
{
"affected": [],
"aliases": [
"CVE-2021-3935"
],
"database_specific": {
"cwe_ids": [
"CWE-295",
"CWE-89"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-22T16:15:00Z",
"severity": "HIGH"
},
"details": "When PgBouncer is configured to use \"cert\" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.",
"id": "GHSA-jh4v-gqwq-hfrr",
"modified": "2025-11-03T21:30:36Z",
"published": "2022-05-24T19:21:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3935"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021251"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00016.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00032.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI"
},
{
"type": "WEB",
"url": "http://www.pgbouncer.org/changelog.html#pgbouncer-116x"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JH98-4JXG-C74J
Vulnerability from github – Published: 2026-04-17 12:31 – Updated: 2026-04-17 12:31Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain(s) an Improper Certificate Validation vulnerability in certificate-based login. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
{
"affected": [],
"aliases": [
"CVE-2026-23776"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-17T10:16:04Z",
"severity": "HIGH"
},
"details": "Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain(s) an Improper Certificate Validation vulnerability in certificate-based login. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.",
"id": "GHSA-jh98-4jxg-c74j",
"modified": "2026-04-17T12:31:25Z",
"published": "2026-04-17T12:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23776"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000450699/dsa-2026-060-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JHFQ-9HCR-5QQV
Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2022-05-13 01:31A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.
{
"affected": [],
"aliases": [
"CVE-2019-1683"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-25T17:29:00Z",
"severity": "HIGH"
},
"details": "A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.",
"id": "GHSA-jhfq-9hcr-5qqv",
"modified": "2022-05-13T01:31:25Z",
"published": "2022-05-13T01:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1683"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-ipphone-certs"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107111"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JHQ4-5R9V-59WJ
Vulnerability from github – Published: 2022-05-17 02:39 – Updated: 2025-04-20 03:39The Lee Bank & Trust lbtc-mobile/id1068984753 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
{
"affected": [],
"aliases": [
"CVE-2017-9561"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-16T12:29:00Z",
"severity": "MODERATE"
},
"details": "The Lee Bank \u0026 Trust lbtc-mobile/id1068984753 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
"id": "GHSA-jhq4-5r9v-59wj",
"modified": "2025-04-20T03:39:12Z",
"published": "2022-05-17T02:39:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9561"
},
{
"type": "WEB",
"url": "https://medium.com/%40chronic_9612/advisory-44-credit-union-apps-for-ios-may-allow-login-credential-exposure-4d2f380b85c5"
},
{
"type": "WEB",
"url": "https://medium.com/@chronic_9612/advisory-44-credit-union-apps-for-ios-may-allow-login-credential-exposure-4d2f380b85c5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JHQ5-XCPF-VRWM
Vulnerability from github – Published: 2022-05-13 01:17 – Updated: 2022-05-13 01:17A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device. The vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by supplying a system image signed with a crafted certificate to an affected device, bypassing the certificate validation. An exploit could allow an attacker to deploy a crafted system image.
{
"affected": [],
"aliases": [
"CVE-2018-15387"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-05T14:29:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device. The vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by supplying a system image signed with a crafted certificate to an affected device, bypassing the certificate validation. An exploit could allow an attacker to deploy a crafted system image.",
"id": "GHSA-jhq5-xcpf-vrwm",
"modified": "2022-05-13T01:17:46Z",
"published": "2022-05-13T01:17:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15387"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-sd-wan-bypass"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105509"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JJ4P-9287-5H8H
Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2022-06-29 00:00Due to Manage Engine Asset Explorer Agent 1.0.34 not validating HTTPS certificates, an attacker on the network can statically configure their IP address to match the Asset Explorer's Server IP address. This will allow an attacker to send a NEWSCAN request to a listening agent on the network as well as receive the agent's HTTP request verifying its authtoken. In httphandler.cpp, the agent reaching out over HTTP is vulnerable to an Integer Overflow, which can be turned into a Heap Overflow allowing for remote code execution as NT AUTHORITY/SYSTEM on the agent machine. The Integer Overflow occurs when receiving POST response from the Manage Engine server, and the agent calling "HttpQueryInfoW" in order to get the "Content-Length" size from the incoming POST request. This size is taken, but multiplied to a larger amount. If an attacker specifies a Content-Length size of 1073741823 or larger, this integer arithmetic will wrap the value back around to smaller integer, then calls "calloc" with this size to allocate memory. The following API "InternetReadFile" will copy the POST data into this buffer, which will be too small for the contents, and cause heap overflow.
{
"affected": [],
"aliases": [
"CVE-2021-20110"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-19T15:15:00Z",
"severity": "CRITICAL"
},
"details": "Due to Manage Engine Asset Explorer Agent 1.0.34 not validating HTTPS certificates, an attacker on the network can statically configure their IP address to match the Asset Explorer\u0027s Server IP address. This will allow an attacker to send a NEWSCAN request to a listening agent on the network as well as receive the agent\u0027s HTTP request verifying its authtoken. In httphandler.cpp, the agent reaching out over HTTP is vulnerable to an Integer Overflow, which can be turned into a Heap Overflow allowing for remote code execution as NT AUTHORITY/SYSTEM on the agent machine. The Integer Overflow occurs when receiving POST response from the Manage Engine server, and the agent calling \"HttpQueryInfoW\" in order to get the \"Content-Length\" size from the incoming POST request. This size is taken, but multiplied to a larger amount. If an attacker specifies a Content-Length size of 1073741823 or larger, this integer arithmetic will wrap the value back around to smaller integer, then calls \"calloc\" with this size to allocate memory. The following API \"InternetReadFile\" will copy the POST data into this buffer, which will be too small for the contents, and cause heap overflow.",
"id": "GHSA-jj4p-9287-5h8h",
"modified": "2022-06-29T00:00:40Z",
"published": "2022-05-24T19:08:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20110"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2021-31"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JJCH-2577-R3C2
Vulnerability from github – Published: 2024-08-14 18:32 – Updated: 2024-08-14 18:32IBM WebSphere Application Server Liberty 17.0.0.3 through 24.0.0.8 could allow an attacker with access to the network to conduct spoofing attacks. An attacker could exploit this vulnerability using a certificate issued by a trusted authority to obtain sensitive information. IBM X-Force ID: 274713.
{
"affected": [],
"aliases": [
"CVE-2023-50314"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T18:15:09Z",
"severity": "MODERATE"
},
"details": "IBM WebSphere Application Server Liberty 17.0.0.3 through 24.0.0.8 could allow an attacker with access to the network to conduct spoofing attacks. An attacker could exploit this vulnerability using a certificate issued by a trusted authority to obtain sensitive information. IBM X-Force ID: 274713.",
"id": "GHSA-jjch-2577-r3c2",
"modified": "2024-08-14T18:32:43Z",
"published": "2024-08-14T18:32:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50314"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/274713"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7165502"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Mitigation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.