{"id":"CVE-2025-9076","revision":"05e9d2e90b3a415eb68a96f8a235e0e6","records":[{"revision":"05e9d2e90b3a415eb68a96f8a235e0e6","observedAt":"2026-10-25T04:17:18.34+00:00","statement":{"source":"nvd","id":"CVE-2025-9076","aliases":[],"title":"Mattermost versions 10.10.x <= 10.10.1 fail to properly sanitize user data during shared channel membership synchronization, which allows malicious or compromised remote clusters to access sensitive user information via unsanitized user obj…","description":"Mattermost versions 10.10.x <= 10.10.1 fail to properly sanitize user data during shared channel membership synchronization, which allows malicious or compromised remote clusters to access sensitive user information via unsanitized user objects. This vulnerability affects Mattermost Server instances with shared channels enabled.","state":0,"publishedAt":"2025-09-15T10:15:32.45+00:00","modifiedAt":"2026-10-19T17:10:00.173+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · responsibledisclosure@mattermost.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","score":6.5,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-9076","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-862"],"productCriteria":["cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2025-09-15T10:15:32.450","lastModified":"2026-10-19T17:10:00.173"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-9076","identifiers":["CVE-2025-9076"]},"retained":false,"historicalAffected":[]}],"coverage":[]}