CVE-2026-55181
criticalTugtainer is a self-hosted app for automating updates of Docker containers.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52 security-advisories@github.com
- https://github.com/Quenary/tugtainer/releases/tag/v1.30.3 security-advisories@github.com
- https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43 security-advisories@github.com
- https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43 134c704f-9b21-4f2e-91b3-4a467353bcc0