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CVE

CVE-2026-55181

Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false
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CVE

CVE-2026-55181

Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false

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 OIDCENABLED=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 oidcstate 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.4
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
C
H
U
-

Related Resources

No items found.

References

https://github.com/Quenary/tugtainer/releases/tag/v1.30.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55181.json, https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43, https://nvd.nist.gov/vuln/detail/CVE-2026-55181, https://github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad86f52

Severity

9.4

CVSS Score
0
10

Basic Information

Base CVSS
9.4
EPSS Probability
0.00598%
EPSS Percentile
0.48325%
Introduced Version
0
Fix Available
76371db679334b002d4af544b0f3b8587ad86f52

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