{"id":"CVE-2026-66853","title":"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","summary":"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 kno…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-200","CWE-863"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T16:17:50.263","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66853","references":[{"url":"https://blog.gitea.com/release-of-1.27.3/","label":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39047","label":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/pull/39058","label":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.3","label":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-w4wc-g858-3672","label":"88ee5874-cf24-4952-aea0-31affedb7ff2"}],"tags":["nvd"],"ingestedAt":"2026-10-14T15:36:14.024Z","slug":"CVE-2026-66853","body":"## Overview\n\nGitea'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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":220340,"id":"CVE-2026-66853","ts":1791996228808,"field":"cvss","old":null,"new":"4.3"},{"seq":220339,"id":"CVE-2026-66853","ts":1791996228808,"field":"severity","old":"none","new":"medium"}]}