{"id":"CVE-2017-18901","aliases":["GHSA-c253-8hr4-r8v9","GO-2026-4304"],"url":"https://o3.security/vulnerability/CVE-2017-18901","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.","published":"2020-06-19T19:15:11.577Z","modified":"2026-07-31T18:30:12.382596328Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.10.3"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"4.0.4"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:12.382596328Z"}}