CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.2. It may be remotely exploitable.
CVE
CVE-2026-42013
Severity
HIGH
CVSS
8.2
EPSS
0.42%
Original NVD 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.