CVE-2026-34041

CRITICAL

9.8

Description

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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/31/2026

Derniere modification4/2/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-74

References

https://github.com/nektos/act/commit/0c739c8e39c41aa5a07665f732da9cab6df0097a(security-advisories@github.com)

https://github.com/nektos/act/releases/tag/v0.2.86(security-advisories@github.com)

https://github.com/nektos/act/security/advisories/GHSA-xmgr-9pqc-h5vw(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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