What’s Vulnerable › Vulnerabilities
CVE-2024-21848: Users maintain access to active call after being removed from a channel
- Severity: low (CVSS 3.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-04-05 · updated 2026-06-17
- Weakness: CWE-284
Description
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
Affected products
- Mattermost: from 8.1.0 before 8.1.11 — fixed in 8.1.11
How to fix
Upgrade to a fixed version: Mattermost 8.1.11. Check the vendor advisory for mitigations.
References
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