CVE-2026-2454 (GCVE-0-2026-2454)
Vulnerability from cvelistv5
Published
2026-03-16 20:10
Modified
2026-03-17 13:37
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CWE
  • CWE-1287 - Improper Validation of Specified Type of Input
Summary
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to handle incorrectly reported array lengths which allows malicious user to cause OOM errors and crash the server via sending corrupted msgpack frames within websocket messages to calls plugin. Mattermost Advisory ID: MMSA-2025-00537
References
Impacted products
Vendor Product Version
Mattermost Mattermost Version: 11.3.0   ≤ 11.3.0
Version: 11.2.0   ≤ 11.2.2
Version: 10.11.0   ≤ 10.11.10
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