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CVE-2026-33810

crypto/x509

Description

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 8.2EPSS 0.33999999999999997%Risk 0.85
View source
Published
2026-04-08 02:16:03
Affected versions
unknown
Type
Core software
Last modified
2026-08-10 13:18:55
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N