{"id":"CVE-2026-66853","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-66853","generatedAt":"2026-10-28T03:58:16.999Z","title":"This exposes organization metadata that should be hidden from the requesting account.","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.","published":"2026-10-14T15:17:22.000Z","lastModified":"2026-10-14T16:17:50.000Z","status":"Deferred","sourceIdentifier":"88ee5874-cf24-4952-aea0-31affedb7ff2","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-200","CWE-863"],"affected":[],"epss":{"score":0.0037,"percentile":0.3078,"date":"2026-10-27","history":[{"date":"2026-10-15","score":0.0037,"percentile":0.29342}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-14T17:45:19.000Z","detail":{"from":null,"score":"4.3","severity":"MEDIUM","fromSeverity":null},"summary":"Now scored CVSS 4.3 MEDIUM."},{"kind":"new","label":"New CVE","at":"2026-10-14T15:17:22.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-14T15:17:21.653Z"},"summary":"New CVE, medium severity (CVSS 4.3)."}],"references":[{"url":"https://blog.gitea.com/release-of-1.27.3/","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39047","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39058","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-66853","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}