EUVD Vulnerability Catalog

EUVD-2026-95113

Severity: CRITICAL Base Score: 9.1 CVSS Version: 3.1

Vulnerability Description

A hostname verification bypass in GnuTLS v3.8.13 allows attackers to circumvent the Common Name fallback mechanism and eavesdrop on communications via a crafted certificate.

CVSS Vector Analysis

Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

▪ Attack Vector (AV): Network

▪ Attack Complexity (AC): Low

▪ Privileges Required (PR): None

▪ User Interaction (UI): None

▪ Scope (S): Unchanged

▪ Confidentiality Impact (C): High

▪ Integrity Impact (I): High

▪ Availability Impact (A): None

Affected Vendors & Systems

Vendor n/a

References & Advisory Links

https://gitlab.com/gnutls/gnutls/-/issues/1802
https://gist.github.com/lkloliver/f98ec3de1a871fdfc02b70b8b9ba7642

Metadata Profile

Database Authority

European Union Agency for Cybersecurity (ENISA) EUVD

Assigner

mitre

EPSS Probability

0.11

Known Aliases

CVE-2026-88647 GHSA-2j2x-fffq-ff4q

Published On

2026-10-08

Last Updated

2026-10-10