{"action":"Upgrade github.com/nektos/act to 0.2.86 or later.","affected":[{"fixed":"0.2.86","introduced":"0"}],"component":"github.com/nektos/act","cve_ids":["CVE-2026-34041"],"ecosystem":"Go","epss":0.00619,"exploited":false,"fixed_versions":["0.2.86"],"ghsa_id":"GHSA-xmgr-9pqc-h5vw","id":"tcs_01M5KFSE8E6X86ZZMEDREG37JD","modified_at":"2026-04-02T21:26:04.645557701Z","published_at":"2026-03-27T19:17:00Z","references":["https://osv.dev/vulnerability/GHSA-xmgr-9pqc-h5vw","https://github.com/nektos/act/security/advisories/GHSA-xmgr-9pqc-h5vw","https://nvd.nist.gov/vuln/detail/CVE-2026-34041","https://github.com/nektos/act/commit/0c739c8e39c41aa5a07665f732da9cab6df0097a","https://github.com/advisories/GHSA-mfwh-5m23-j46w","https://github.com/nektos/act","https://github.com/nektos/act/releases/tag/v0.2.86"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-xmgr-9pqc-h5vw","url":"https://osv.dev/vulnerability/GHSA-xmgr-9pqc-h5vw"}],"summary":"act: Unrestricted set-env and add-path command processing enables environment injection"}