CVE-2026-42012 — Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans
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 S…
Published: 2026-05-26 · CVSS: 7.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7