CVE-2026-32281

Inefficient policy validation in crypto/x509

State
Published
Severity
7.5 High
Published
Apr 8, 2026
Updated
Apr 13, 2026
Reserved
Mar 11, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
crypto/x509Go standard library
  • before 1.25.9Affected
  • 1.26.0-0 to before 1.26.2Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.