CVE-2025-66406CWE-863broken-access-control

CVE-2025-66406

Medium · published December 4, 2025

CVSS v3.1
5.0
EPSS
0%
Percentile
4.0
In the wild
Unconfirmed
What it is

Step CA is an online certificate authority for secure, automated certificate management for DevOps. Prior to 0.29.0, there is an improper authorization check for SSH certificate revocation. This affects deployments configured with the SSHPOP provisioner. This vulnerability is fixed in 0.29.0.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00151 · 4.0th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2025-12-04T01:16Z
References (1)
https://github.com/smallstep/certificates/security/advisories/GHSA-j7c9-79x7-8hpr · [email protected]
EPSS history
Timeline
  • 03 DEC 19:13Z
    Improper Authorization Check for SSH Certificate Revocation
    cvelistv5