CVE-2026-32281

HIGH7.5

Inefficient policy validation in crypto/x509

Published Apr 8, 2026

Modified 5 days ago

Details

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.

References

WEB

https://go.dev/cl/758061

WEB

https://go.dev/issue/78281

WEB

https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU

WEB

https://pkg.go.dev/vuln/GO-2026-4946

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-32281

CVSS Analysis