GO-2026-4947
Unexpected work during chain building in crypto/x509
At a glance
- Published
- Updated
- CVE
- CVE-2026-32280
- Aliases
- BIT-golang-2026-32280
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.
Affected packages
| Package | Versions |
|---|---|
| Go · stdlib | introduced 0, fixed 1.25.9, introduced 1.26.0-0, fixed 1.26.2 |
References
- https://go.dev/cl/758320 FIX
- https://go.dev/issue/78282 REPORT
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |