{"id":"CVE-2018-21249","aliases":["EUVD-2018-13764","GHSA-f3c7-479p-6gqx"],"status":"published","title":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00729,"percentile":0.54519,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-06-19T16:47:49Z","modified":"2026-10-24T10:30:44Z","products":[{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-21249"},{"url":"https://github.com/advisories/GHSA-f3c7-479p-6gqx"}],"sources":{"cve":[{"id":"CVE-2018-21249","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","status":"published","published":"2020-06-19T16:47:49Z","modified":"2024-08-05T12:26:39.6Z","updated_at":"2026-11-02T14:35:02.289647Z"}],"euvd":[{"id":"EUVD-2018-13764","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","status":"published","published":"2020-06-19T16:47:49Z","modified":"2024-08-05T12:26:39Z","updated_at":"2026-11-03T02:39:27.875919Z"}],"ghsa":[{"id":"GHSA-f3c7-479p-6gqx","title":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","status":"published","published":"2022-05-24T17:21:08Z","modified":"2023-01-29T05:03:05Z","updated_at":"2026-11-02T14:45:14.198561Z"}],"nvd":[{"id":"CVE-2018-21249","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","status":"published","published":"2020-06-19T17:15:12.38Z","modified":"2026-06-17T01:54:28.15Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:05:00.03074Z"}],"osv":[{"id":"CVE-2018-21249","description":"An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.","status":"published","published":"2020-06-19T17:15:12.38Z","modified":"2026-10-24T10:30:44.283514061Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}