Tugtainer: OIDC login remains accessible when OIDC_ENABLED is false

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55181
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-30 17:16:46 UTC
Updated2026-09-30 20:17:33 UTC
DescriptionTugtainer 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.

Risk And Classification

Primary CVSS: v3.1 9.4 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Problem Types: CWE-284 | CWE-284 CWE-284: Improper Access Control

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
3.1CNADECLARED9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Quenary Tugtainer affected < 1.30.3 Not specified

References

ReferenceSourceLinkTags
github.com/Quenary/tugtainer/releases/tag/v1.30.3 [email protected] github.com
github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/Quenary/tugtainer/commit/76371db679334b002d4af544b0f3b8587ad8... [email protected] github.com
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