CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate validation. This bypass could lead to the acceptance of invalid certificates, potentially enabling spoofing or man-in-the-middle attacks against affected systems.

Score
CVSS 3.1 7.4 High
Status
Awaiting Analysis - secalert@redhat.com
Published
2026-05-07
Last modified
2026-10-26
Weaknesses
CWE-295

Affected products

References

 
 
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