{"id":"CVE-2026-66853","aliases":["EUVD-2026-101087","GHSA-w4wc-g858-3672"],"status":"published","title":"Gitea restricted-user organization metadata disclosure","description":"Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.0037,"percentile":0.31355,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-863"],"published":"2026-10-14T14:36:01Z","modified":"2026-10-28T02:30:40Z","products":[{"vendor":"gitea","product":"gitea"}],"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672","tags":["vendor-advisory","advisory"]},{"url":"https://blog.gitea.com/release-of-1.27.3/","tags":["release-notes","advisory"]},{"url":"https://github.com/go-gitea/gitea/pull/39047","tags":["patch","fix"]},{"url":"https://github.com/go-gitea/gitea/pull/39058","tags":["patch","fix"]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","tags":["release-notes","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66853.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66853","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-66853","title":"Gitea restricted-user organization metadata disclosure","description":"Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.","status":"published","published":"2026-10-14T14:36:01.009Z","modified":"2026-10-14T15:17:24.381Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T14:20:12.939084Z"}],"euvd":[{"id":"EUVD-2026-101087","description":"Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.","status":"published","published":"2026-10-14T14:36:01Z","modified":"2026-10-14T15:17:24Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:15.108271Z"}],"nvd":[{"id":"CVE-2026-66853","description":"Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.","status":"published","published":"2026-10-14T15:17:21.653Z","modified":"2026-10-14T16:17:50.263Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T14:12:58.99337Z"}],"osv":[{"id":"CVE-2026-66853","title":"Gitea restricted-user organization metadata disclosure","description":"Gitea's user organization-list API includes Limited-visibility organizations for authenticated restricted accounts without applying the visibility restriction enforced by the single-organization endpoint. A restricted user can list a known user's public organization memberships and retrieve limited organizations' names, descriptions, and avatars. This exposes organization metadata that should be hidden from the requesting account.","status":"published","published":"2026-10-14T14:36:01.009Z","modified":"2026-10-28T02:30:40.114645498Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T15:45:14.46177Z"}]}}