CVE-2026-42508
CRITICAL9.1EPSS 0.04%Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts
Published: 5/22/2026Modified: 5/29/2026
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.
Affected packages (2)
- Debian/golang-go.cryptofrom 0
- Go/golang.org/x/cryptofrom 0, < 0.52.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |