Ghostwire

CVE-2026-42012: A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted...

HIGH CVSS 7.1 Exploit Available

Published: May 26, 2026 | Last Modified: May 27, 2026

Description

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

References