CVE-2026-23520

Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane’s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.lifecycle.post-update that allowed defining a command to run before or after a container update. The label value is passed directly to /bin/sh -c without sanitization or validation. Because any authenticated user (not limited to administrators) can create projects through the API, an attacker can create a project that specifies one of these lifecycle labels with a malicious command. When an administrator later triggers a container update (either manually or via scheduled update checks), Arcane reads the lifecycle label and executes its value as a shell command inside the container. This vulnerability is fixed in 1.13.0.

• CWE-78

• https://github.com/getarcaneapp/arcane/commit/5a9c2f92e11f86f8997da8c672844468f930b7e4Exploit
• https://github.com/getarcaneapp/arcane/pull/1468Issue Tracking
• https://github.com/getarcaneapp/arcane/releases/tag/v1.13.0Release Notes
• https://github.com/getarcaneapp/arcane/security/advisories/GHSA-gjqq-6r35-w3r8Vendor Advisory

Published

Jan 15, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-23515Signal K Server is a server application that runs on a centr…8.8
• CVE-2026-23516CVAT is an open source interactive video and image annotatio…5.4
• CVE-2026-23517Fleet is open source device management software. A broken ac…8.1
• CVE-2026-23518Fleet is open source device management software. In versions…9.8
• CVE-2026-23519RustCrypto CMOV provides conditional move CPU intrinsics whi…9.8
• CVE-2026-2352The Autoptimize plugin for WordPress is vulnerable to Stored…6.4
• CVE-2026-23521Versions of the Traccar open-source GPS tracking system up t…6.5
• CVE-2026-23522LobeChat is an open source chat application platform. Prior …3.7
• CVE-2026-23523Dive is an open-source MCP Host Desktop Application that ena…8.8
• CVE-2026-23524Laravel Reverb provides a real-time WebSocket communication …9.8
• CVE-2026-235251Panel is an open-source, web-based control panel for Linux …8.4
• CVE-2026-23526CVAT is an open source interactive video and image annotatio…8.8