CVE-2026-3524highCWE-862

Authorization Bypass in Mattermost Legal Hold Plugin Due to Missing Return After Permission Check

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.3epss 0.4%

probabilidad de explotación

0.4%top 68% de las CVE

explotación observada

noninguna fuente lo reporta

Mattermost Plugin Legal Hold versions <=1.1.4 fail to halt request processing after a failed authorization check in ServeHTTP which allows an authenticated attacker to access, create, download, and delete legal hold data via crafted API requests to the plugin's endpoints. Mattermost Advisory ID: MMSA-2026-00621

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Productos afectados

Mattermost · Mattermost

Referencias

https://mattermost.com/security-updates