A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6140-1 gnutls28 security update
Ubuntu USN Ubuntu USN USN-8043-1 GnuTLS vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 10 Feb 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Red Hat
Red Hat enterprise Linux
Redhat openshift Container Platform
Vendors & Products Red Hat
Red Hat enterprise Linux
Redhat openshift Container Platform

Tue, 10 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 09 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 09 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).
Title Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-407
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-02-18T17:02:55.797Z

Reserved: 2025-12-17T14:44:59.859Z

Link: CVE-2025-14831

cve-icon Vulnrichment

Updated: 2026-02-09T15:25:52.476Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-09T15:16:09.937

Modified: 2026-02-09T16:08:35.290

Link: CVE-2025-14831

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-09T14:26:34Z

Links: CVE-2025-14831 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T15:37:37Z

Weaknesses