CVE-2026-32281
Last modified
CVE-2026-32281 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.25.9 |
| Golang | Go | >= 1.26.0, < 1.26.2 |
References
- https://go.dev/issue/78281Issue Tracking
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUIssue Tracking, Release Notes
- https://pkg.go.dev/vuln/GO-2026-4946Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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