{"id":"GHSA-5ghq-28r7-qwfj","summary":"Mattermost Server does not restrict SAML certificate path for System Administrators","details":"An issue was discovered in Mattermost Server before 3.7.3 and 3.6.5. A System Administrator can place a SAML certificate at an arbitrary pathname.","aliases":["CVE-2017-18918","GO-2026-4460"],"modified":"2026-02-19T20:56:04.358036Z","published":"2022-05-24T17:21:07Z","database_specific":{"github_reviewed_at":"2026-02-06T22:59:00Z","nvd_published_at":"2020-06-19T20:15:00Z","cwe_ids":["CWE-22"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18918"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/8ec37570742b67fd640bb3434ea226c655dbf408"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/a12e7fdca439948ab097431d68e8f59778fbab81"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"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":"3.6.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5ghq-28r7-qwfj/GHSA-5ghq-28r7-qwfj.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.7.0"},{"fixed":"3.7.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5ghq-28r7-qwfj/GHSA-5ghq-28r7-qwfj.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"}]}