HIGH 8.2 Microsoft
CVE-2026-42013
Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name
Microsoft Security Update 2026-May: Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name
Affected Products
- azl3 gnutls 3.8.3-8 on Azure Linux 3.0
- azl3 gnutls 3.8.3-11 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42013
- https://nvd.nist.gov/vuln/detail/CVE-2026-42013
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-05-12 via Microsoft. Affected: azl3 gnutls 3.8.3-8 on Azure Linux 3.0, azl3 gnutls 3.8.3-11 on Azure Linux 3.0.
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