Go/stdlib CVE-2026-27138: medium 5.9, EPSS 0.36%
Panic in name constraint checking for malformed certificates in crypto/x509
Action: Upgrade stdlib to 1.26.1 or later.
Upgrade Go to 1.26.1.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.26.0-0 | 1.26.1 | - |
Fixed versions
| 1.26.1 |
Sources
- osv: GO-2026-4600
- nvd: CVE-2026-27138
- https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk
- https://go.dev/issue/77953
- https://go.dev/cl/752183
CVE-2026-27138 · published · modified · JSON