{"schema_version":"1.7.3","id":"GHSA-c253-8hr4-r8v9","published":"2022-05-24T17:21:06Z","modified":"2026-02-03T03:02:20.842132Z","aliases":["CVE-2017-18901","GO-2026-4304"],"summary":"Mattermost Server exposes private team invite ID ","details":"An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.","affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.10.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-c253-8hr4-r8v9/GHSA-c253-8hr4-r8v9.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.0.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-c253-8hr4-r8v9/GHSA-c253-8hr4-r8v9.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18901"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/5e822a7d09214d5446d54e02a0611df8e64f3aa5"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/638c38cc0d2296335a0fbd5bde8b6d2cbf9f9062"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/a78ed923f1c73ae5551893374fb9803ee2f4c8e6"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-200"],"github_reviewed":true,"github_reviewed_at":"2026-01-12T20:16:26Z","nvd_published_at":"2020-06-19T19:15:00Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}