SEPTEMBER 15, 2026
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Case File

CVE-2026-14344

MEDIUM · CVSS 4.3

Source: NVD + CISA KEV + EPSS · Published 2026-09-14 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

Certain versions of Mattermost are vulnerable due to insufficient enforcement of board-creation permissions, allowing unauthorized authenticated users to create boards through specific endpoints. This could lead to unauthorized access and manipulation of sensitive data within the application. Organizations using affected versions should prioritize patching to mitigate potential risks associated with unauthorized board creation.

CVE
CVE-2026-14344
Severity
MEDIUM
CVSS
4.3
EPSS
N/A

Original NVD Description

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to enforce the board-creation permission which allows an unauthorized authenticated user to create boards via the board duplicate, boards-and-blocks, and archive-import endpoints.. Mattermost Advisory ID: MMSA-2026-00715