CVEvulnerability

CVE-2026-42013

8.2 HIGH Published 2026-05-26 Modified 2026-10-29 Official page ↗
Status
Awaiting Analysis
Published
2026-05-26
Last modified
2026-10-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Weaknesses
CWE-295

Description

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

References