{"id":"CVE-2024-21848","summary":"Users maintain access to active call after being removed from a channel","details":"Improper Access Control in Mattermost Server versions 8.1.x before 8.1.11 allows an attacker that is in a channel with an active call to keep participating in the call even if they are removed from the channel\n\n","aliases":["BIT-mattermost-2024-21848","GHSA-xp9j-8p68-9q93","GO-2024-2707"],"modified":"2026-08-12T03:51:48.387862881Z","published":"2024-04-05T08:13:01.713Z","related":["CGA-j55f-qqc7-w94r"],"database_specific":{"cwe_ids":["CWE-284"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21848.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"8.1.0"},{"last_affected":"8.1.10"}]},{"extracted_events":[{"introduced":"8.1.x"},{"fixed":"8.1.11"}],"source":"DESCRIPTION"}],"cna_assigner":"Mattermost"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21848.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21848"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"096c9ea12a2144f832e330e9a0f4d3862ca20b9f"},{"fixed":"45093ef4be396d39748078f9205a88ba5756e0b9"}],"database_specific":{"extracted_events":[{"introduced":"8.1.0"},{"fixed":"8.1.11"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"}}],"versions":["v8.1.10-rc1","v8.1.10","v8.1.9","v8.1.9-rc2","v8.1.9-rc1","v8.1.8","v8.1.8-rc2","v8.1.8-rc1","v8.1.7-rc3","v8.1.7","v8.1.7-rc2","v8.1.7-rc1","v8.1.6-rc1","v8.1.6","v8.1.5-rc2","v8.1.5","v8.1.5-rc1","v8.1.4-rc2","v8.1.4","v8.1.4-rc1","v8.1.3-rc2","v8.1.3","v8.1.3-rc1","v8.1.2-rc2","v8.1.2","v8.1.2-rc1","v8.1.1-rc2","v8.1.1","@mattermost/types@8.1.1","@mattermost/client@8.1.1","v8.1.1-rc1","v8.1.0-rc2","v8.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-21848.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}