An issue in gnutls v3.8.13 causes legitimate CA certificates to be rejected, leading to a Denial of Service (DoS).

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

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
https://evil.com cve-icon
https://gist.github.com/lkloliver/8e4498311aff18e2077010e412043e18 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-95209 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-95209 cve-icon
https://www.gnutls.org cve-icon cve-icon
History

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

Type Values Removed Values Added
Title gnutls: gnutls: legitimate CA certificates incorrectly rejected causing denial of service
Weaknesses CWE-295
References
Metrics threat_severity

None

 threat_severity

Moderate

Mon, 19 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
Title GnuTLS 3.8.13 CA Certificate Rejection Causes TLS Denial of Service

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

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

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

Fri, 16 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
References

Fri, 16 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
References

Fri, 09 Oct 2026 07:45:00 +0000

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

Fri, 09 Oct 2026 03:15:00 +0000

Type Values Removed Values Added
Title GnuTLS 3.8.13 CA Certificate Rejection Causes TLS Denial of Service

Fri, 09 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
Title Legitimate CA Certificate Rejection Leading to Denial of Service in GnuTLS 3.8.13
Weaknesses CWE-287

Thu, 08 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 08 Oct 2026 21:15:00 +0000

Type Values Removed Values Added
Title Legitimate CA Certificate Rejection Leading to Denial of Service in GnuTLS 3.8.13
Weaknesses CWE-287

Thu, 08 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description An issue in gnutls v3.8.13 causes legitimate CA certificates to be rejected, leading to a Denial of Service (DoS).
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

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

Updated: 2026-10-19T15:13:52.883Z

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

Link: CVE-2026-95209

cve-icon Vulnrichment

Updated: 2026-10-08T20:18:39.169Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-08T19:20:52.830

Modified: 2026-10-19T16:17:09.423

Link: CVE-2026-95209

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2026-95209 - Bugzilla