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.
History

Thu, 09 Apr 2026 08:30:00 +0000

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library crypto/x509
Weaknesses CWE-770
Vendors & Products Go Standard Library
Go Standard Library crypto/x509

Thu, 09 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1050
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Wed, 08 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770

Wed, 08 Apr 2026 01:45:00 +0000

Type Values Removed Values Added
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.
Title Inefficient policy validation in crypto/x509
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published:

Updated: 2026-04-08T01:06:58.354Z

Reserved: 2026-03-11T16:38:46.556Z

Link: CVE-2026-32281

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T02:16:03.350

Modified: 2026-04-08T21:26:35.910

Link: CVE-2026-32281

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-08T01:06:58Z

Links: CVE-2026-32281 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-09T08:28:13Z