{"id":"CVE-2026-73800","summary":"Gitea reusable workflow secret exposure in pull_request_target","details":"Gitea resolves local reusable workflow files from a fork's head commit when a trusted base-branch workflow runs for a pull_request_target event. A fork author can modify a referenced reusable workflow so attacker-controlled code executes with the repository and organization secrets available to that event. Exploitation requires a base workflow that calls a local reusable workflow, and bypasses the intended separation between trusted base code and untrusted fork code.","aliases":["GHSA-r9ch-mqjm-g67v"],"modified":"2026-10-15T02:47:43.999668363Z","published":"2026-10-14T14:37:49.783Z","database_specific":{"cna_assigner":"Gitea","cwe_ids":["CWE-829","CWE-94"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73800.json"},"references":[{"type":"ADVISORY","url":"https://blog.gitea.com/release-of-1.27.2/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73800.json"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/38886"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/38897"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-r9ch-mqjm-g67v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73800"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-gitea/gitea","events":[{"introduced":"49a4e4555a8af51f5a83ee321607c328930c070e"},{"fixed":"1dac1bb2f8593d4319125fa6bca9283000a2ddc2"}],"database_specific":{"extracted_events":[{"introduced":"1.19.0"},{"fixed":"1.27.2"}],"source":"AFFECTED_FIELD"}}],"versions":["v1.27.1","v1.27.0","v1.27.0-rc0","v1.28.0-dev","v1.27.0-dev","v1.26.0-dev","v1.25.0-dev","v1.24.0-dev","v1.22.0-rc1","v1.23.0-dev","v1.22.0-rc0","v1.21.0-rc0","v1.22.0-dev","v1.20.0-rc0","v1.21.0-dev","v1.20.0-dev","v1.19.0-rc0","v1.19.0-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73800.json"}}],"schema_version":"1.9.0"}