{"schema_version":"1.7.3","id":"GHSA-5mh6-p63g-3mv5","published":"2022-05-24T17:21:09Z","modified":"2025-11-25T18:57:48.725937Z","aliases":["CVE-2018-21258","GO-2025-4146"],"summary":"Mattermost Server is vulnerable to a Denial of Service attack through `invite_people` command","details":"An issue was discovered in Mattermost Server before 5.1.0. It allows attackers to cause a denial of service via the invite_people slash command.","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":"5.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5mh6-p63g-3mv5/GHSA-5mh6-p63g-3mv5.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-21258"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/af615ffc24b774d76deef8c93282831432669dd8"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-400"],"github_reviewed":true,"github_reviewed_at":"2025-11-20T21:02:18Z","nvd_published_at":"2020-06-19T17:15:00Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}