High severity8.2NVD Advisory· Published May 26, 2026· Updated Jun 2, 2026
CVE-2026-42013
CVE-2026-42013
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
5News mentions
0No linked articles in our index yet.