{"id":"CVE-2025-55074","revision":"8efc0da044df4ce4b8f4e52d076de67d","records":[{"revision":"8efc0da044df4ce4b8f4e52d076de67d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-55074","aliases":[],"title":"Channel member objects leak read status","description":"Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects","state":0,"publishedAt":"2025-11-18T15:23:29.642+00:00","modifiedAt":"2025-11-18T21:03:22.89+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\": \"10.11.3\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.11.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThanOrEqual\": \"10.5.11\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.5.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"11.0.0\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.11.4\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.5.12\",\n                            \"status\": \"unaffected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N","score":3,"severity":"LOW"}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-55074","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-55074","identifiers":["CVE-2025-55074"]},"retained":false,"historicalAffected":[]}],"coverage":[]}