What’s Vulnerable › Vulnerabilities
CVE-2024-1953
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-02-29 · updated 2026-06-17
- Weakness: CWE-400
Description
Mattermost versions 8.1.x before 8.1.9, 9.2.x before 9.2.5, 9.3.0, and 9.4.x before 9.4.2 fail to limit the number of role names requested from the API, allowing an authenticated attacker to cause the server to run out of memory and crash by issuing an unusually large HTTP request.
Affected products
- Mattermost: from 8.1.0 before 8.1.9; from 9.2.0 before 9.2.5; from 9.4.0 before 9.4.2; 9.3.0 — fixed in 8.1.9, 9.2.5, 9.4.2
How to fix
Upgrade to a fixed version: Mattermost 8.1.9, 9.2.5, 9.4.2. Check the vendor advisory for mitigations.
References
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