Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.25.9 |
Related Weaknesses (CWE)
References
- https://go.dev/cl/758061Patch
- https://go.dev/issue/78281Issue Tracking
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWURelease NotesIssue Tracking
- https://pkg.go.dev/vuln/GO-2026-4946Vendor Advisory
FAQ
What is CVE-2026-32281?
CVE-2026-32281 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 onl...
How severe is CVE-2026-32281?
CVE-2026-32281 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32281?
Check the references section above for vendor advisories and patch information. Affected products include: Golang Go.