Improper certificate validation in gnutls v3.8.13 causes the application to accept certificates containing invalid extensions.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Gnu
  • Gnutls

No data.

No data.

References
Link Providers
http://gnutls.com cve-icon cve-icon cve-icon
https://gist.github.com/lkloliver/4aad23689202720c4068f43b3c6069c7 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-95210 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-95210 cve-icon
History

Wed, 21 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Title Certificate Validation Bypass due to Invalid Extensions gnutls: gnutls: certificates with invalid extensions incorrectly accepted
References
Metrics threat_severity

None

 threat_severity

Moderate

Mon, 19 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Title Certificate Validation Bypass due to Invalid Extensions

Mon, 19 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

 cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 09 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 09 Oct 2026 07:30:00 +0000

Type Values Removed Values Added
First Time appeared Gnu
Gnu gnutls
Vendors & Products Gnu
Gnu gnutls

Thu, 08 Oct 2026 22:15:00 +0000

Type Values Removed Values Added
Title GnuTLS 3.8.13 improper certificate validation permits acceptance of certificates with invalid extensions

Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Title GnuTLS 3.8.13 improper certificate validation permits acceptance of certificates with invalid extensions

Thu, 08 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Thu, 08 Oct 2026 18:15:00 +0000

Type Values Removed Values Added
Description Improper certificate validation in gnutls v3.8.13 causes the application to accept certificates containing invalid extensions.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-10-08T00:00:00.000Z

Updated: 2026-10-19T15:13:43.177Z

Reserved: 2026-09-22T00:00:00.000Z

Link: CVE-2026-95210

cve-icon Vulnrichment

Updated: 2026-10-08T18:28:04.253Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-08T18:18:33.370

Modified: 2026-10-19T16:17:09.577

Link: CVE-2026-95210

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-08T00:00:00Z

Links: CVE-2026-95210 - Bugzilla