CVE-2026-95209

gnutls: gnutls: legitimate CA certificates incorrectly rejected causing denial of service

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Published Oct 8, 2026 CVSS n/a EPSS n/a KEV · Not listed
Description
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-400
Metrics 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'}
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). NOTE: this is disputed by multiple parties because the behavior does not offer a new ability for an adversary to conduct a denial of service, and because the product can reasonably choose to enforce a dNSName constraint against Common Name when Subject Alternative Name is absent. ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.
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). An issue in gnutls v3.8.13 causes legitimate CA certificates to be rejected, leading to a Denial of Service (DoS). NOTE: this is disputed by multiple parties because the behavior does not offer a new ability for an adversary to conduct a denial of service, and because the product can reasonably choose to enforce a dNSName constraint against Common Name when Subject Alternative Name is absent.
References
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
Type Values Removed Values Added
Title GnuTLS 3.8.13 CA Certificate Rejection Causes TLS Denial of Service
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'}
Type Values Removed Values Added
References
Type Values Removed Values Added
References
Type Values Removed Values Added
First Time appeared Gnu
Gnu gnutls
Vendors & Products Gnu
Gnu gnutls
Type Values Removed Values Added
Title GnuTLS 3.8.13 CA Certificate Rejection Causes TLS Denial of Service
Type Values Removed Values Added
Title Legitimate CA Certificate Rejection Leading to Denial of Service in GnuTLS 3.8.13
Weaknesses CWE-287
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'}
Type Values Removed Values Added
Title Legitimate CA Certificate Rejection Leading to Denial of Service in GnuTLS 3.8.13
Weaknesses CWE-287
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
Earlier changes (10)
Weaknesses

Sources

Status
REJECTED
Assigner
mitre
Published
Updated
Nov 4, 2026, 4:11 AM
Reserved
Sep 22, 2026, 12:00 AM

View source JSON

Updated

JSON

Status
Rejected
Published
Oct 8, 2026, 7:20 PM
Modified
Nov 4, 2026, 5:19 AM

View source JSON

Severity
Moderate
Public date
Oct 8, 2026, 12:00 AM

View source Bugzilla JSON

No data.