{"schema":"threatline.record/2","record":{"id":"CVE-2026-78433","aliases":["GHSA-frpv-2xgv-wxpq"],"summary":"Gitea private attachment disclosure through repository mismatch","details":"Gitea's web attachment handler skips its cross-repository ownership check for attachments created before 16 January 2026 and checks permissions against the repository named in the request URL instead. An unauthenticated attacker who knows a private attachment's UUID can request it through a public repository's attachment path and retrieve its contents. This can expose issue and pull request attachments or release assets; the random attachment UUID must already be known to the attacker.","categories":["Unclassified"],"product":"Gitea","vendor":"Gitea","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-78433","source_modified_at":"2026-10-18T13:35:37.544Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Gitea","vendor":"Gitea","versions":[{"version":"1.26.0","status":"affected","lessThanOrEqual":"1.27.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00369,"percentile":0.29597,"score_date":"2026-10-23"},"published_at":"2026-10-14T14:38:17.247Z","modified_at":"2026-10-18T13:35:37.544Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-78433","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-18T13:35:37.544Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-78433","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-frpv-2xgv-wxpq","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://blog.gitea.com/release-of-1.27.3/","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39048","tags":["patch"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39077","tags":["patch"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-18T13:35:32.390912Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-18T13:35:37.544Z","content_hash":"acfd67256d27af5fb579c940acd7eeeb603aecdfcc9946461c3d2ca1bcab89f7"}}