CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.8. See the original NVD description below for full technical details.
CVE
CVE-2026-2454
Severity
MEDIUM
CVSS
5.8
EPSS
0.27%
Original NVD Description
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
Related CVEs
Other vulnerabilities affecting the same vendor(s)