{"id":"CVE-2026-55494","summary":"Tugtainer: Unauthenticated access to Tugtainer Agent Docker management APIs when AGENT_SECRET is unset","details":"Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.4, Tugtainer Agent allows unauthenticated access to Docker management APIs when AGENT_SECRET is not configured. The Agent uses request signatures to protect its API routes. However, in agent/auth.py, the signature verification function returns successfully if Config.AGENT_SECRET is empty. This causes protected Agent APIs to become accessible without authentication. This issue has been patched in version 1.30.4.","aliases":["GHSA-wgw2-c96g-p7h7"],"modified":"2026-10-02T03:47:29.809269374Z","published":"2026-09-30T16:58:27.259Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-284"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55494.json"},"references":[{"type":"WEB","url":"https://github.com/Quenary/tugtainer/releases/tag/v1.30.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55494.json"},{"type":"ADVISORY","url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55494"},{"type":"FIX","url":"https://github.com/Quenary/tugtainer/commit/0052a5544e187a4d12f771838a8a23ca4afb61cd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/quenary/tugtainer","events":[{"introduced":"0"},{"fixed":"0052a5544e187a4d12f771838a8a23ca4afb61cd"},{"fixed":"2de79602fc3edacc782a083053f84d88382e7997"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.30.4"}]}}],"versions":["v1.30.3","v1.30.2","v1.30.1","v1.30.0","v1.29.1","v1.29.0","v1.28.3","v1.28.2","v1.28.1","v1.28.0","v1.27.0","v1.26.0","v1.25.1","v1.25.0","v1.24.1","v1.24.0","v1.23.1","v1.23.0","v1.22.0","v1.21.1","v1.21.0","v1.20.0","v1.19.0","v1.18.0","v1.17.5","v1.17.4","v1.17.3","v1.17.2","v1.17.1","v1.17.0","v1.16.1","v1.16.0","v1.15.2","v1.15.1","v1.15.0","v1.14.4","v1.14.3","v1.14.2","v1.14.1","v1.14.0","v1.13.1","v1.13.0","v1.12.2","v1.12.1","v1.12.0","v1.11.0","v1.10.0","v1.9.0","v1.8.0","v1.7.1","v1.7.0","v1.6.0","v1.5.3","v1.5.2","v1.5.1","v1.5.0","v1.4.2","v1.4.1","v1.4.0","v1.3.0","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.6","v1.1.5","v1.1.4","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.3","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55494.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}