PT-2026-31062 · Go Standard Library · Crypto/X509

Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-32281

NVD

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. 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.

Related Identifiers

CVE-2026-32281

Affected Products

Crypto/X509

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-32281 · Security Note
• https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU · Note
• https://go.dev/issue/78281 · Note
• https://go.dev/cl/758061 · Note
• https://pkg.go.dev/vuln/GO-2026-4946 · Note