CVE-2026-55181
CRITICAL
CVSS 9.4
Published: 2026-09-30
Modified: 2026-09-30
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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.
Quick Facts
| CVE ID | CVE-2026-55181 |
| CVSS Score | 9.4 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| Published | 2026-09-30 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |