CVE-2025-66406
step-ca Has Improper Authorization Check for SSH Certificate Revocation in github.com/smallstep/certificates
5.0
MEDIUM
CVSS 3.1
EPSS 0.03%
Description
step-ca Has Improper Authorization Check for SSH Certificate Revocation in github.com/smallstep/certificates
How to fix CVE-2025-66406
To remediate CVE-2025-66406, upgrade the affected package to a fixed version below.
- Go/github.com/smallstep/certificates—upgrade to 0.29.0 or later
- —upgrade to 0.29.0 or later
Is CVE-2025-66406 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.29.0
- from 0, < 0.29.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H |