{"id":"CVE-2026-55181","state":"PUBLISHED","title":"Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false","description":"Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.3, Tugtainer's OIDC authentication can still be initiated even when OIDC_ENABLED=false. The /auth/oidc/enabled endpoint correctly reports that OIDC is disabled. However, a direct request to /auth/oidc/login still starts the OIDC login flow, returns HTTP 302, sets an oidc_state cookie, and redirects the user to the configured OIDC authorization endpoint. This bypasses the intended OIDC disable switch. This issue has been patched in version 1.30.3.","publishedAt":"2026-09-30T16:57:15.306Z","updatedAt":"2026-09-30T19:50:41.889Z","severity":{"score":9.4,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["Quenary tugtainer"],"affected":[{"vendor":"Quenary","product":"tugtainer","versions":[{"version":"< 1.30.3","status":"affected"}]}],"references":["https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43","https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52","https://github.com/Quenary/tugtainer/releases/tag/v1.30.3"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55181.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55181","state":"PUBLISHED","datePublished":"2026-09-30T16:57:15.306Z","dateUpdated":"2026-09-30T19:50:41.889Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T15:20:43.086Z"},"containers":{"cna":{"title":"Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false","descriptions":[{"lang":"en","value":"Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.3, Tugtainer's OIDC authentication can still be initiated even when OIDC_ENABLED=false. The /auth/oidc/enabled endpoint correctly reports that OIDC is disabled. However, a direct request to /auth/oidc/login still starts the OIDC login flow, returns HTTP 302, sets an oidc_state cookie, and redirects the user to the configured OIDC authorization endpoint. This bypasses the intended OIDC disable switch. This issue has been patched in version 1.30.3."}],"affected":[{"vendor":"Quenary","product":"tugtainer","versions":[{"version":"< 1.30.3","status":"affected"}]}],"references":[{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43","name":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52","name":"https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52","tags":["x_refsource_MISC"]},{"url":"https://github.com/Quenary/tugtainer/releases/tag/v1.30.3","name":"https://github.com/Quenary/tugtainer/releases/tag/v1.30.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":9.4,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-30T16:57:15.306Z"},"source":{"advisory":"GHSA-rg7c-vpfp-2w43","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-30T19:50:35.786345Z","id":"CVE-2026-55181","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T19:50:41.889Z"}}]}}}