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.
History

Thu, 04 Dec 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Smallstep
Smallstep certificates
Vendors & Products Smallstep
Smallstep certificates

Wed, 03 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Dec 2025 19:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Improper Authorization Check for SSH Certificate Revocation
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-03T21:40:59.681Z

Reserved: 2025-11-28T23:33:56.365Z

Link: CVE-2025-66406

cve-icon Vulnrichment

Updated: 2025-12-03T21:40:55.583Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-03T20:16:26.560

Modified: 2025-12-04T17:15:08.283

Link: CVE-2025-66406

cve-icon Redhat

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