{"answers":{"affected":"3 open source packages ship an affected version, including github.com/smallstep/certificates.","exploited":"There is no known exploitation of CVE-2025-66406 in the wild and no public exploit code.","fix":"Upgrade github.com/smallstep/certificates to 0.29.0 or later.","what":"CVE-2025-66406 is a medium-severity missing authorization vulnerability in smallstep certificates, published on 3 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-66406 and fix it if it is affected.\n\nWhat it is: CVE-2025-66406 is a medium-severity missing authorization vulnerability in smallstep certificates, published on 3 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-66406 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/smallstep/certificates (Go): affected all versions; fixed in 0.29.0\n- github.com/smallstep/certificates (Go): affected all versions; fixed in 0.29.0\n- github.com/smallstep/certificates (Go): affected all versions; fixed in 0.29.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-66406/ (Markdown: https://insights.sbomify.com/CVE-2025-66406/index.md)","id":"CVE-2025-66406","markdown":"https://insights.sbomify.com/CVE-2025-66406/index.md","name":"CVE-2025-66406","record":{"aliases":["CLEANSTART-2026-MK81849","CLEANSTART-2026-RS62088","GHSA-j7c9-79x7-8hpr","GO-2025-4181","MINI-xmrj-xrj8-ffh8"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Step CA certificate authority","requires_auth":"high_privilege","summary":"Attackers can bypass authorization checks to revoke SSH certificates in Step CA deployments using the SSHPOP provisioner.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Improper Authorization Check for SSH Certificate Revocation","id":"CVE-2025-66406","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2025"},"n_packages":3,"n_references":1,"next":{"headline":"Weblate has Server-Side Request Forgery vulnerability","id":"CVE-2025-66407"},"packages":[{"ecosystem":"Go","fixed":["0.29.0"],"introduced":["0"],"last_affected":[],"package":"github.com/smallstep/certificates","purl":null,"source":"GHSA-j7c9-79x7-8hpr"},{"ecosystem":"Go","fixed":["0.29.0"],"introduced":["0"],"last_affected":[],"package":"github.com/smallstep/certificates","purl":"pkg:golang/github.com/smallstep/certificates","source":"GHSA-j7c9-79x7-8hpr"},{"ecosystem":"Go","fixed":["0.29.0"],"introduced":["0"],"last_affected":[],"package":"github.com/smallstep/certificates","purl":"pkg:golang/github.com/smallstep/certificates","source":"GO-2025-4181"}],"prev":{"headline":"Portkey.ai Gateway: Server-Side Request Forgery (SSRF) in Custom Host","id":"CVE-2025-66405"},"products":["certificates"],"published":"2025-12-03","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-03","vendors":["smallstep"]},"summary":"Attackers can bypass authorization checks to revoke SSH certificates in Step CA deployments using the SSHPOP provisioner.","url":"https://insights.sbomify.com/CVE-2025-66406/"}