CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1908 vulnerabilities reference this CWE, most recent first.
GHSA-PVG4-2WP8-HX6G
Vulnerability from github – Published: 2023-02-01 15:30 – Updated: 2023-02-08 21:30Selfwealth iOS mobile App 3.3.1 is vulnerable to Insecure App Transport Security (ATS) Settings.
{
"affected": [],
"aliases": [
"CVE-2023-23131"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-01T14:15:00Z",
"severity": "HIGH"
},
"details": "Selfwealth iOS mobile App 3.3.1 is vulnerable to Insecure App Transport Security (ATS) Settings.",
"id": "GHSA-pvg4-2wp8-hx6g",
"modified": "2023-02-08T21:30:19Z",
"published": "2023-02-01T15:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23131"
},
{
"type": "WEB",
"url": "https://github.com/l00neyhacker/CVE-2023-23131"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PW35-2FX2-H8Q7
Vulnerability from github – Published: 2025-03-01 03:30 – Updated: 2025-03-01 03:30An Improper Certificate Validation vulnerability could allow an authenticated malicious actor with access to UniFi Protect Cameras adjacent network to make unsupported changes to the camera system.
{
"affected": [],
"aliases": [
"CVE-2025-23118"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-01T03:15:23Z",
"severity": "MODERATE"
},
"details": "An Improper Certificate Validation vulnerability could allow an authenticated malicious actor with access to UniFi Protect Cameras adjacent network to make unsupported changes to the camera system.",
"id": "GHSA-pw35-2fx2-h8q7",
"modified": "2025-03-01T03:30:59Z",
"published": "2025-03-01T03:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23118"
},
{
"type": "WEB",
"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-046-046/9649ea8f-93db-4713-a875-c3fd7614943f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PWQ5-W788-7W28
Vulnerability from github – Published: 2022-05-24 16:51 – Updated: 2024-04-04 01:21A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.
{
"affected": [],
"aliases": [
"CVE-2019-11727"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-23T14:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox \u003c 68.",
"id": "GHSA-pwq5-w788-7w28",
"modified": "2024-04-04T01:21:25Z",
"published": "2022-05-24T16:51:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11727"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1951"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201908-12"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-21"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PX54-5FMQ-RF2F
Vulnerability from github – Published: 2022-05-17 01:38 – Updated: 2024-02-09 03:32Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.
{
"affected": [],
"aliases": [
"CVE-2012-5821"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-11-04T22:55:00Z",
"severity": "MODERATE"
},
"details": "Lynx does not verify that the server\u0027s certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.",
"id": "GHSA-px54-5fmq-rf2f",
"modified": "2024-02-09T03:32:56Z",
"published": "2022-05-17T01:38:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5821"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79930"
},
{
"type": "WEB",
"url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351"
},
{
"type": "WEB",
"url": "http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:101"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1642-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PX9Q-XV67-75FR
Vulnerability from github – Published: 2026-06-26 03:31 – Updated: 2026-06-26 03:31A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation.
This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.
{
"affected": [],
"aliases": [
"CVE-2026-48934"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-26T02:16:52Z",
"severity": "MODERATE"
},
"details": "A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation.\n\nThis vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.",
"id": "GHSA-px9q-xv67-75fr",
"modified": "2026-06-26T03:31:30Z",
"published": "2026-06-26T03:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48934"
},
{
"type": "WEB",
"url": "https://nodejs.org/en/blog/vulnerability/june-2026-security-releases"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PXHR-2259-H82W
Vulnerability from github – Published: 2023-09-06 06:30 – Updated: 2024-04-04 07:31Improper Certificate Validation in Samsung Email prior to version 6.1.82.0 allows remote attacker to intercept the network traffic including sensitive information.
{
"affected": [],
"aliases": [
"CVE-2023-30729"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-06T04:15:16Z",
"severity": "HIGH"
},
"details": "Improper Certificate Validation in Samsung Email prior to version 6.1.82.0 allows remote attacker to intercept the network traffic including sensitive information.",
"id": "GHSA-pxhr-2259-h82w",
"modified": "2024-04-04T07:31:11Z",
"published": "2023-09-06T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30729"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2023\u0026month=09"
}
],
"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-PXP5-G66H-WPV2
Vulnerability from github – Published: 2022-09-22 00:00 – Updated: 2022-12-06 19:54Jenkins View26 Test-Reporting Plugin 1.0.7 and earlier does not perform hostname validation when connecting to the configured View26 server that could be abused using a man-in-the-middle attack to intercept these connections.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:view26"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-41244"
],
"database_specific": {
"cwe_ids": [
"CWE-295",
"CWE-297"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-23T13:30:36Z",
"nvd_published_at": "2022-09-21T16:15:00Z",
"severity": "MODERATE"
},
"details": "Jenkins View26 Test-Reporting Plugin 1.0.7 and earlier does not perform hostname validation when connecting to the configured View26 server that could be abused using a man-in-the-middle attack to intercept these connections.",
"id": "GHSA-pxp5-g66h-wpv2",
"modified": "2022-12-06T19:54:53Z",
"published": "2022-09-22T00:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41244"
},
{
"type": "PACKAGE",
"url": "https://github.com/jenkinsci/view26-plugin"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2022-09-21/#SECURITY-2069"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Missing hostname validation in Jenkins View26 Test-Reporting Plugin"
}
GHSA-PXVJ-4WX4-GV6W
Vulnerability from github – Published: 2023-03-28 15:30 – Updated: 2025-02-19 18:32The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.
{
"affected": [],
"aliases": [
"CVE-2023-0466"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-28T15:15:00Z",
"severity": "MODERATE"
},
"details": "The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.",
"id": "GHSA-pxvj-4wx4-gv6w",
"modified": "2025-02-19T18:32:12Z",
"published": "2023-03-28T15:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0466"
},
{
"type": "WEB",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=0d16b7e99aafc0b4a6d729eec65a411a7e025f0a"
},
{
"type": "WEB",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=51e8a84ce742db0f6c70510d0159dad8f7825908"
},
{
"type": "WEB",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=73398dea26de9899fb4baa94098ad0a61f435c72"
},
{
"type": "WEB",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc814a30fc4f0bc54fcea7d9a7462f5457aab061"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202402-08"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230414-0001"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5417"
},
{
"type": "WEB",
"url": "https://www.openssl.org/news/secadv/20230328.txt"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/09/28/4"
}
],
"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-PXVM-4FFC-CHR4
Vulnerability from github – Published: 2022-05-24 17:32 – Updated: 2022-05-24 17:32Improper certificate validation vulnerability in OpenVPN client in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
{
"affected": [],
"aliases": [
"CVE-2020-27649"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-29T09:15:00Z",
"severity": "CRITICAL"
},
"details": "Improper certificate validation vulnerability in OpenVPN client in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
"id": "GHSA-pxvm-4ffc-chr4",
"modified": "2022-05-24T17:32:35Z",
"published": "2022-05-24T17:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27649"
},
{
"type": "WEB",
"url": "https://www.synology.com/security/advisory/Synology_SA_20_14"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1058"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q27F-V3R6-9V77
Vulnerability from github – Published: 2021-05-24 18:13 – Updated: 2023-08-08 16:34EM-HTTP-Request 1.1.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.1.5"
},
"package": {
"ecosystem": "RubyGems",
"name": "em-http-request"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-13482"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2021-05-14T18:46:59Z",
"nvd_published_at": "2020-05-25T22:15:00Z",
"severity": "HIGH"
},
"details": "EM-HTTP-Request 1.1.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.",
"id": "GHSA-q27f-v3r6-9v77",
"modified": "2023-08-08T16:34:06Z",
"published": "2021-05-24T18:13:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13482"
},
{
"type": "WEB",
"url": "https://github.com/igrigorik/em-http-request/issues/339"
},
{
"type": "WEB",
"url": "https://github.com/igrigorik/em-http-request/commit/e5fa144f8d21050dd1fc15a4dc8aa34ac6f30602"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-q27f-v3r6-9v77"
},
{
"type": "PACKAGE",
"url": "https://github.com/igrigorik/em-http-request"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/em-http-request/CVE-2020-13482.yml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKYP5TR5NTVVDX5R4HCNNH2OQR7M4X3J"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z32PUJA6RGBZ3TKSOTGUXZ45662S3MVF"
},
{
"type": "ADVISORY",
"url": "https://securitylab.github.com/advisories/GHSL-2020-094-igrigorik-em-http-request"
}
],
"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:N",
"type": "CVSS_V3"
}
],
"summary": "Improper Certificate Validation in EM-HTTP-Request"
}
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.