What’s Vulnerable › Vulnerabilities
CVE-2024-2446
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-03-15 · updated 2026-06-17
- Weakness: CWE-400
Description
Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to limit the number of @-mentions processed per message, allowing an authenticated attacker to crash the client applications of other users via large, crafted messages.
Affected products
- Mattermost: from 8.1.0 before 8.1.10; from 9.2.0 before 9.2.6; from 9.3.0 before 9.3.2; from 9.4.0 before 9.4.3 — fixed in 8.1.10, 9.2.6, 9.3.2, 9.4.3
How to fix
Upgrade to a fixed version: Mattermost 8.1.10, 9.2.6, 9.3.2, 9.4.3. Check the vendor advisory for mitigations.
References
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