CVE-2026-33810
Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 7.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
08 abr 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Productos afectados
Go standard library · crypto/x509¿Quieres saber si tu infraestructura está expuesta a esto?
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