CVE-2026-55181Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false
Updated under an hour ago ()
Does this affect you?
It affects Quenary tugtainer. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.60%, higher than 47% of scored CVEs.
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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
- 9.4 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.60% (percentile 47)
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Quenary tugtainer quenary:tugtainer (from the name) | before 1.30.3 | CNA record |
References
- https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43x-refsource-confirm
- https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52x-refsource-misc
- https://github.com/Quenary/tugtainer/releases/tag/v1.30.3x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.