Research / Finding
Gnutls: gnutls: policy bypass due to case-sensitive nameconstraints comparison F-GNUTLS-NAMECONSTRAINTS-001
Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.
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Recorded evidence
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Gnutls: gnutls: policy bypass due to case-sensitive nameconstraints comparison
Fixed in: GnuTLS 3.8.13
patched
details
Finding IDs F-GNUTLS-NAMECONSTRAINTS-001 CVE CVE-2026-3833 Status patched Fixed in GnuTLS 3.8.13 Recorded credit independently reported by Oleh Konko (1seal) and Joshua Rogers Note x509/name-constraints: compare domain names case-insensitive CVE registry state PUBLISHED CVE state checked 23 Sep 2026 F-GNUTLS-NAMECONSTRAINTS-001: Verification failures. Case-sensitive DNS comparison bypasses certificate name constraints. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.
Mechanism source for F-GNUTLS-NAMECONSTRAINTS-001
Security area (1seal assessment): Identity. Case-sensitive DNS comparison bypasses certificate name constraints. Reviewed 24 Sep 2026.
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