OCTOBER 8, 2026
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Case File

CVE-2026-96260

MEDIUM · CVSS 6.5 EPSS 0.41%

Source: NVD + CISA KEV + EPSS · Published 2026-09-22 · Last synced 2026-10-08

CyberRota Analysis

AI-Generated

Mattermost versions 11.9.x up to 11.9.1, 11.8.x up to 11.8.5, 11.7.x up to 11.7.10, and 11.10.x up to 11.10.1 are vulnerable due to inadequate enforcement of request body size limits during CSRF validation for plugin requests. This flaw allows authenticated users to send excessively large request bodies, potentially exhausting server memory and leading to a denial of service. Organizations using these Mattermost versions should prioritize patching to mitigate the risk of service disruption.

CVE
CVE-2026-96260
Severity
MEDIUM
CVSS
6.5
EPSS
0.41%

Original NVD Description

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to enforce a request body size limit during CSRF validation of plugin requests which allows an authenticated user to exhaust server memory and cause a denial of service via a large request body sent to a plugin endpoint.. Mattermost Advisory ID: MMSA-2026-00775

Related CVEs

Other vulnerabilities affecting the same vendor(s)