{"schema":"threatline.record/2","record":{"id":"CVE-2026-103667","aliases":["GHSA-7cq7-4v93-8wjm"],"summary":"Gitea container registry stored XSS through blob media type","details":"Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in pushed image manifests, without a `Content-Disposition` or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a `text/html` media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and can perform actions as the victim, such as creating API tokens.","categories":["Unclassified"],"product":"Gitea","vendor":"Gitea","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103667","source_modified_at":"2026-10-07T20:17:12.875Z","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-7cq7-4v93-8wjm","source_modified_at":"2026-10-06T19:16:32Z","fetched_at":"2026-10-23T19:00:29.328130Z","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-7cq7-4v93-8wjm","source_modified_at":"2026-10-06T19:16:32Z","fetched_at":"2026-10-23T19:00:29.328130Z","package":{"ecosystem":"go","name":"gitea.dev"},"version":"28.0.0"}],"cvss":5.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0019,"percentile":0.08238,"score_date":"2026-10-23"},"published_at":"2026-10-06T19:23:34.873Z","modified_at":"2026-10-07T20:17:12.875Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103667","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T20:17:12.875Z"},{"source":"GitHub Advisory Database","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-7cq7-4v93-8wjm","fetched_at":"2026-10-23T19:00:29.328130Z","source_modified_at":"2026-10-06T19:16:32Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103667","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-7cq7-4v93-8wjm","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39398","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":"no","technical_impact":"partial","assessed_at":"2026-10-07T20:16:50.727435Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T20:17:12.875Z","content_hash":"26c45f9f540df36954e427c689bcf0fb292b337679ea6a235e6adc0c5802e6fa"}}