{"id":"CVE-2025-11776","revision":"004ad8648ef143dd9cf29753e4b90691","records":[{"revision":"004ad8648ef143dd9cf29753e4b90691","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-11776","aliases":[],"title":"Guest user can discover archived public channels","description":"Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint","state":0,"publishedAt":"2025-11-14T07:58:52.172+00:00","modifiedAt":"2025-11-14T15:49:13.309+00:00","affected":[{"ecosystem":"Vendor product","name":"Mattermost","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Mattermost\",\n                    \"vendor\": \"Mattermost\",\n                    \"versions\": [\n                        {\n                            \"lessThanOrEqual\": \"<11\",\n                            \"status\": \"affected\",\n                            \"version\": \"<11\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"11.0.0\",\n                            \"status\": \"unaffected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-11776","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-11776","identifiers":["CVE-2025-11776"]},"retained":false,"historicalAffected":[]}],"coverage":[]}