Vulnerability Description
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.25.9 |
Related Weaknesses (CWE)
References
- https://go.dev/cl/758320Patch
- https://go.dev/issue/78282Issue Tracking
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWURelease NotesMailing List
- https://pkg.go.dev/vuln/GO-2026-4947Vendor Advisory
FAQ
What is CVE-2026-32280?
CVE-2026-32280 is a vulnerability with a CVSS score of 7.5 (HIGH). During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial o...
How severe is CVE-2026-32280?
CVE-2026-32280 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-2026-32280?
Check the references section above for vendor advisories and patch information. Affected products include: Golang Go.