CVE-2026-42011highCWE-295

CVE-2026-42011: falha de alta gravidade em gnutls

Gnutls: gnutls: security bypass due to incorrect name constraint handling

Publicada em 07 mai 2026 · Atualizada em 05 nov 2026

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21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 7.4epss 0.5%

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Produtos afetados

CVEs relacionadas — gnutls

No mesmo produto, das mais perigosas para as menos.

CVE-2026-33845HIGHGnutls: gnutls: denial of service via dtls zero-length fragmentEPSS 2.1%CVE-2024-0553HIGHGnutls: incomplete fix for cve-2023-5981EPSS 1.6%CVE-2024-0567HIGHGnutls: rejects certificate chain with distributed trustEPSS 1.4%CVE-2026-1584HIGHGnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binderEPSS 1.4%CVE-2026-42009HIGHGnutls: gnutls: denial of service via dtls packet reordering vulnerabilityEPSS 1.3%CVE-2026-2100MEDIUMP11-kit: null dereference via c_derivekey with specific null parametersEPSS 1.3%

Referências