{"schema":"threatline.record/2","record":{"id":"CVE-2026-103670","aliases":["GHSA-4j4g-m7mr-hp5j"],"summary":"Gitea trusted workflow cancellation by unapproved fork runs","details":"When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled without checking whether the new run still needed approval. Because fork pull request runs are inserted under the base repository, a user who can open a pull request from a fork could cancel trusted in-progress runs that share a concurrency group with `cancel-in-progress` enabled, without approval and without running any code. On self-hosted runners this can interrupt deployments and leave partial state behind.","categories":["Unclassified"],"product":"Gitea","vendor":"Gitea","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103670","source_modified_at":"2026-10-07T15:58:09.298Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"1.27.3","status":"affected","version":"0","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"GitHub Advisory Database","source_url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-4j4g-m7mr-hp5j","source_modified_at":"2026-10-06T19:16:28Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"go","name":"gitea.dev"},"range":"<= 1.27.3"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-4j4g-m7mr-hp5j","source_modified_at":"2026-10-06T19:16:28Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"go","name":"gitea.dev"},"version":"28.0.0"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00215,"percentile":0.11358,"score_date":"2026-10-23"},"published_at":"2026-10-06T19:23:40.050Z","modified_at":"2026-10-07T15:58:09.298Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103670","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T15:58:09.298Z"},{"source":"GitHub Advisory Database","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-4j4g-m7mr-hp5j","fetched_at":"2026-10-23T20:37:03.234832Z","source_modified_at":"2026-10-06T19:16:28Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103670","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-4j4g-m7mr-hp5j","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39399","tags":["patch"]},{"source":"CVE List","url":"https://blog.gitea.com/release-of-28.0.0/","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/releases/tag/v28.0.0","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-07T15:55:33.888984Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T15:58:09.298Z","content_hash":"895423d785f3141b684da89fb38c0e06ee7f17804a0af21a24c08fb9fa6cbab8"}}