{"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-2026-34042"],"ecosystem":"Go","epss":0.00578,"exploited":false,"fixed_versions":["0.2.86"],"ghsa_id":"GHSA-x34h-54cw-9825","id":"tcs_01M5KFREZ9D7RT2A1GKC7D9JMY","modified_at":"2026-04-02T21:26:09.803073852Z","published_at":"2026-03-27T19:35:16Z","references":["https://osv.dev/vulnerability/GHSA-x34h-54cw-9825","https://github.com/nektos/act/security/advisories/GHSA-x34h-54cw-9825","https://nvd.nist.gov/vuln/detail/CVE-2026-34042","https://github.com/nektos/act/commit/c28c27e141e8b54f9853de82f421ee09846751f7","https://code.forgejo.org/forgejo/runner/issues/294","https://github.com/nektos/act","https://github.com/nektos/act/releases/tag/v0.2.86"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-x34h-54cw-9825","url":"https://osv.dev/vulnerability/GHSA-x34h-54cw-9825"}],"summary":"act: actions/cache server allows malicious cache injection"}