Bug 2418682 (CVE-2025-66406) - CVE-2025-66406 github.com/smallstep/certificates: Step CA: Denial of Service via improper SSH certificate revocation authorization
Summary: CVE-2025-66406 github.com/smallstep/certificates: Step CA: Denial of Service ...
Keywords:
Status: NEW
Alias: CVE-2025-66406
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-03 20:02 UTC by OSIDB Bzimport
Modified: 2026-01-27 10:10 UTC (History)
34 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-12-03 20:02:09 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.