CVE-2026-34042 in act

Sumário (Inglês)

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.

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Responsável

GitHub_M

Reservar

25/03/2026

Divulgação

31/03/2026

Estado

Confirmado

Inscrições

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidade	CWE	Exp	Con	CVE
354314	nektos act Docker Container Elevação de Privilégios	862	Não definido	Correção oficial	CVE-2026-34042

Fontes

• MITRE
• NVD
• CVE Details