CVE-2025-66406: medium-severity vulnerability in smallstep certificates
Improper Authorization Check for SSH Certificate Revocation
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5epss 0.2%
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.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H
Affected products
smallstep · certificatesRelated CVEs — smallstep certificates
In the same product, most dangerous first.