{"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_01M5KGGT7GE0PGA3MAWPFTD8AX","modified_at":"2026-04-02T21:20:05.868931Z","published_at":"2026-04-02T18:42:30Z","references":["https://osv.dev/vulnerability/GO-2026-4891","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","https://github.com/nektos/act/releases/tag/v0.2.86"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-4891","url":"https://osv.dev/vulnerability/GO-2026-4891"}],"summary":"act: Unrestricted set-env and add-path command processing enables environment injection in github.com/nektos/act"}