Vulnerability Description
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
References
- https://go.dev/cl/781220
- https://go.dev/issue/79568
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI
- https://pkg.go.dev/vuln/GO-2026-5021
FAQ
What is CVE-2026-42508?
CVE-2026-42508 is a documented vulnerability. Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
How severe is CVE-2026-42508?
CVSS scoring is not yet available for CVE-2026-42508. Check NVD for updates.
Is there a patch for CVE-2026-42508?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.