CVE-2026-34042

act is a project which allows for local running of github actions. Prior to version 0.2.86, act's built in actions/cache server listens to connections on all interfaces and allows anyone who can connect to it including someone anywhere on the internet to create caches with arbitrary keys and retrieve all existing caches. If they can predict which cache keys will be used by local actions, they can create malicious caches containing whatever files they please most likely allowing arbitrary remote code execution within the docker container. This issue has been patched in version 0.2.86.

• CWE-862

• https://code.forgejo.org/forgejo/runner/issues/294
• https://github.com/nektos/act/commit/c28c27e141e8b54f9853de82f421ee09846751f7
• https://github.com/nektos/act/releases/tag/v0.2.86
• https://github.com/nektos/act/security/advisories/GHSA-x34h-54cw-9825

Published

Mar 31, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• 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-2026-34036Dolibarr is an enterprise resource planning (ERP) and custom…6.5
• CVE-2026-34037Coolify is an open-source and self-hostable tool for managin…9.9
• CVE-2026-34038Coolify is an open-source and self-hostable tool for managin…9.9
• CVE-2026-3404A flaw has been found in thinkgem JeeSite up to 5.15.1. Impa…8.1
• CVE-2026-34040Moby is an open source container framework. Prior to version…7.8
• CVE-2026-34041act is a project which allows for local running of github ac…9.8
• CVE-2026-34043Serialize JavaScript to a superset of JSON that includes reg…7.5
• CVE-2026-34044Coolify is an open-source and self-hostable tool for managin…7.7
• CVE-2026-34045Podman Desktop is a graphical tool for developing on contain…9.1
• CVE-2026-34046Langflow is a tool for building and deploying AI-powered age…8.8
• CVE-2026-34047Coolify is an open-source and self-hostable tool for managin…9.9
• CVE-2026-34048Coolify is an open-source and self-hostable tool for managin…9.9