CVE-2026-34041

CRITICAL

9.8

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/31/2026

Ultima modificacion4/2/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-74

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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