CVE-2026-34041 in nektos actinfo

Summary

act is a project which allows for local running of github actions. Prior to version 0.2.86, act unconditionally processes the deprecated ::set-env:: and ::add-path:: workflow commands, which was disabled due to environment injection risks. When a workflow step echoes untrusted data to stdout, an attacker can inject these commands to set arbitrary environment variables or modify the PATH for all subsequent steps in the job. This issue has been patched in version 0.2.86.

Disclosure

03/31/2026

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VulDB provides additional information and datapoints for this CVE:

IDVulnerabilityCWEExpCouCVE
354077nektos act add-path injection74Not definedOfficial fixCVE-2026-34041

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