{"id":"CVE-2017-18918","aliases":["GHSA-5ghq-28r7-qwfj","GO-2026-4460"],"url":"https://o3.security/vulnerability/CVE-2017-18918","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.","published":"2020-06-19T20:15:12.587Z","modified":"2026-10-24T10:30:44.510290684Z","cvss":{"score":4.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.6.5"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.7.3"}],"fix":{"url":"https://github.com/mattermost/mattermost/commit/8ec37570742b67fd640bb3434ea226c655dbf408","label":"mattermost/mattermost@8ec3757"},"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:44.510290684Z"}}