CVE-2026-55181
Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false
- State
- Published
- Severity
- 9.4 Critical
- Published
- Sep 30, 2026
- Updated
- Sep 30, 2026
- Reserved
- Jun 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.4 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L | GitHub_M |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
tugtainerQuenary |
|
References
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