{"schema_version":"1.7.3","id":"GHSA-g24c-fx4v-xg9w","published":"2022-05-24T17:21:06Z","modified":"2026-02-03T03:02:11.022673Z","aliases":["CVE-2017-18905","GO-2026-4306"],"summary":"Mattermost Server has Insufficient Session Expiration when used as an OAuth 2.0 service provider","details":"An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.","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":"3.9.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-g24c-fx4v-xg9w/GHSA-g24c-fx4v-xg9w.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.10.0"},{"fixed":"3.10.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-g24c-fx4v-xg9w/GHSA-g24c-fx4v-xg9w.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18905"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/15ad24d160cb4604d0605ebbfa53d11a57820706"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/b17fca0d5ee7557e3df1cf1d1da8bd749859e35f"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/fbc170733e86f09b46ba754dd03304733d2f482f"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-613"],"github_reviewed":true,"github_reviewed_at":"2026-01-12T20:18:44Z","nvd_published_at":"2020-06-19T20:15:00Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}