{"schema_version":"1.7.3","id":"GHSA-h8cp-697h-8c8p","published":"2025-12-03T17:00:03Z","modified":"2026-02-04T04:35:36.822296Z","aliases":["CVE-2025-44005","GO-2025-4180"],"related":["CGA-ffjg-5f45-g48f"],"summary":"Step CA Has Authorization Bypass in ACME and SCEP Provisioners","details":"## Summary\n\nA security fix is now available for Step CA that resolves a vulnerability affecting deployments configured with ACME and/or SCEP provisioners.\nAll operators running these provisioners should upgrade to the latest release (`v0.29.0`) immediately.\n\nThe issue was discovered and disclosed by a research team during a security review. There is no evidence of active exploitation.\n\nTo limit exploitation risk during a coordinated disclosure window, we are withholding detailed technical information for now. A full write-up will be published in several weeks.\n\n---\n\n## Embargo List\n\nIf your organization runs Step CA in production and would like advance, embargoed notification of future security updates, visit https://u.step.sm/disclosure to request inclusion on our embargo list.\n\n---\n\n## Acknowledgements\n\nThis issue was identified and reported by Stephen Kubik of the Cisco Advanced Security Initiatives Group (ASIG)\n\n---\n\nStay safe, and thank you for helping us keep the ecosystem secure.","affected":[{"package":{"name":"github.com/smallstep/certificates","ecosystem":"Go","purl":"pkg:golang/github.com/smallstep/certificates"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.29.0"}]}],"database_specific":{"last_known_affected_version_range":"<= 0.28.4","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-h8cp-697h-8c8p/GHSA-h8cp-697h-8c8p.json"}}],"references":[{"type":"WEB","url":"https://github.com/smallstep/certificates/security/advisories/GHSA-h8cp-697h-8c8p"},{"type":"WEB","url":"https://github.com/smallstep/certificates/commit/1011f5f5408b470a636f583bf74c0d7bbaf75d72"},{"type":"PACKAGE","url":"https://github.com/smallstep/certificates"}],"database_specific":{"cwe_ids":["CWE-306"],"github_reviewed":true,"github_reviewed_at":"2025-12-03T17:00:03Z","nvd_published_at":null,"severity":"CRITICAL"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"}]}