Go standard library crypto/x509

15 published vulnerabilities name this product.

As the CNAs write it in their CVE records (vendor and product); the versions are theirs.

CVEVulnerable versionsTitleSeverityPublishedEPSSExploitation
CVE-2026-111943< 1.26.10 ; 1.27.0-0 – < 1.27.3Distrust compromised intermediate certificates in crypto/x509MEDIUM 6.80.4 %
CVE-2026-27145< 1.25.11 ; 1.26.0-0 – < 1.26.4Inefficient candidate hostname parsing in crypto/x509HIGH 7.50.6 %
CVE-2026-32281< 1.25.9 ; 1.26.0-0 – < 1.26.2Inefficient policy validation in crypto/x509HIGH 7.50.4 %
CVE-2026-32280< 1.25.9 ; 1.26.0-0 – < 1.26.2Unexpected work during chain building in crypto/x509HIGH 7.50.6 %
CVE-2026-338101.26.0-0 – < 1.26.2Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509HIGH 8.20.3 %
CVE-2026-271381.26.0-0 – < 1.26.1Panic in name constraint checking for malformed certificates in crypto/x509MEDIUM 5.90.4 %
CVE-2026-271371.26.0-0 – < 1.26.1Incorrect enforcement of email constraints in crypto/x509HIGH 7.50.6 %
CVE-2025-61727< 1.24.11 ; 1.25.0 – < 1.25.5Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509MEDIUM 6.50.3 %
CVE-2025-61729< 1.24.11 ; 1.25.0 – < 1.25.5Excessive resource consumption when printing error string for host certificate validation in crypto/x509HIGH 7.50.5 %
CVE-2025-58188< 1.24.8 ; 1.25.0 – < 1.25.2Panic when validating certificates with DSA public keys in crypto/x509HIGH 7.50.4 %
CVE-2025-58187< 1.24.9 ; 1.25.0 – < 1.25.3Quadratic complexity when checking name constraints in crypto/x509HIGH 7.50.4 %
CVE-2025-228741.24.0-0 – < 1.24.4Usage of ExtKeyUsageAny disables policy validation in crypto/x509HIGH 7.50.4 %
CVE-2025-228651.24.0-0 – < 1.24.0-rc.2ParsePKCS1PrivateKey panic with partial keys in crypto/x509HIGH 7.50.6 %
CVE-2024-45341< 1.22.11 ; 1.23.0-0 – < 1.23.5 ; 1.24.0-0 – < 1.24.0-rc.2Usage of IPv6 zone IDs can bypass URI name constraints in crypto/x509MEDIUM 6.10.6 %
CVE-2024-24783< 1.21.8 ; 1.22.0-0 – < 1.22.1Verify panics on certificates with an unknown public key algorithm in crypto/x509MEDIUM 5.90.7 %