Is github.com/nektos/act affected by CVE-2026-34041?

Go github.com/nektos/act is affected in <0.2.86.

Is CVE-2026-34041 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

medium

CVE-2026-34041

Q: Is CVE-2026-34041 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.6%.

Go · github.com/nektos/act

Summary

act: Unrestricted set-env and add-path command processing enables environment injection in github.com/nektos/act

Severity: medium
EPSS: 0.6% (p45)
Also known as: GHSA-xmgr-9pqc-h5vw, GO-2026-4891
Published: 2026-04-02

References

https://github.com/nektos/act/security/advisories/GHSA-xmgr-9pqc-h5vw
https://github.com/nektos/act/commit/0c739c8e39c41aa5a07665f732da9cab6df0097a
https://github.com/advisories/GHSA-mfwh-5m23-j46w

Related advisories

CVE-2026-34042 — medium · Go/github.com/nektos/act

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.