{"id":"CVE-2020-14453","details":"An issue was discovered in Mattermost Server before 5.21.0. Socket read operations are not appropriately restricted, which allows attackers to cause a denial of service, aka MMSA-2020-0005.","aliases":["BIT-mattermost-2020-14453"],"modified":"2026-04-11T21:48:05.498022Z","published":"2020-06-19T14:15:11.573Z","references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"0"},{"fixed":"f51c4f18f007494c3858fd029bf76819ff12ff1e"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.21.0"}],"source":"CPE_FIELD","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"}}],"versions":["v0.5.0","v4.10.0-rc1","v4.2.0-rc1","v4.3.0-rc1","v4.4.0-rc1","v4.5.0-rc1","v4.6.0-rc1","v4.6.0-rc2","v4.7.0-rc1","v4.8.0-rc1","v4.9.0-rc1","v5.0.0-rc1","v5.1.0-rc1","v5.2.0-rc1","v5.2.0-rc2","v5.20.0","v5.20.0-rc1","v5.20.0-rc2","v5.20.0-rc3","v5.20.1","v5.20.1-rc1","v5.20.2","v5.20.2-rc1","v5.21.0-rc1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14453.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}