{"id":"CVE-2026-96594","aliases":["BIT-gitea-2026-96594","EUVD-2026-94066","GHSA-94rx-fqm6-q23v"],"status":"published","title":"Gitea repository media API stored XSS","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00223,"percentile":0.12995,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-10-06T21:36:38Z","modified":"2026-10-28T02:30:41Z","fixes":[{"ecosystem":"Bitnami","package":"gitea","fixed_in":["28.1.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitea","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"28.1.0"}]}]}],"products":[{"vendor":"gitea","product":"gitea"}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-94rx-fqm6-q23v","tags":["vendor-advisory","Mitigation","Vendor Advisory","advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/39501","tags":["patch","Patch","Issue Tracking","fix"]},{"url":"https://github.com/go-gitea/gitea/pull/39507","tags":["patch","Patch","Issue Tracking","fix"]},{"url":"https://blog.gitea.com/release-of-28.1.0/","tags":["release-notes","Release Notes","article","advisory"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.1.0","tags":["release-notes","Release Notes","article","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96594","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/96xxx/CVE-2026-96594.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-96594","title":"Gitea repository media API stored XSS","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","status":"published","published":"2026-10-06T21:36:38.491Z","modified":"2026-10-07T15:04:26.695Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:00.511569Z"}],"euvd":[{"id":"EUVD-2026-94066","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","status":"published","published":"2026-10-06T21:36:38Z","modified":"2026-10-07T15:04:26Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:35.164729Z"}],"nvd":[{"id":"CVE-2026-96594","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","status":"published","published":"2026-10-06T22:17:07.81Z","modified":"2026-10-13T17:59:22.62Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:54.809359Z"}],"osv":[{"id":"CVE-2026-96594","title":"Gitea repository media API stored XSS","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","status":"published","published":"2026-10-06T21:36:38.491Z","modified":"2026-10-28T02:30:41.786122166Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:21.262447Z"},{"id":"BIT-gitea-2026-96594","title":"Gitea repository media API stored XSS","description":"The Gitea API endpoint `GET /api/v1/repos/{owner}/{repo}/media/{filepath}` wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.","status":"published","published":"2026-10-14T08:43:17.529Z","modified":"2026-10-14T11:10:55.784981843Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}