CVE-2026-55494

Published: Set 30, 2026 Last Modified: Set 30, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.4, Tugtainer Agent allows unauthenticated access to Docker management APIs when AGENT_SECRET is not configured. The Agent uses request signatures to protect its API routes. However, in agent/auth.py, the signature verification function returns successfully if Config.AGENT_SECRET is empty. This causes protected Agent APIs to become accessible without authentication. This issue has been patched in version 1.30.4.

284

Improper Access Control

Incomplete
Abstraction: Pillar Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Varies By Context
Applicable Platforms
Technologies: Not Technology-Specific, ICS/OT, Web Based
View CWE Details
https://github.com/Quenary/tugtainer/commit/0052a5544e187a4…
https://github.com/Quenary/tugtainer/commit/0052a5544e187a4d12f771838a8a23ca4af…
https://github.com/Quenary/tugtainer/releases/tag/v1.30.4
https://github.com/Quenary/tugtainer/releases/tag/v1.30.4
https://github.com/Quenary/tugtainer/security/advisories/GH…
https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7