CVE-2026-14298

Medium

Open

TLP:CLEAR

Denial of service via resource exhaustion in Mattermost

NVD CVE.org

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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 properly limit resource consumption when processing certain user-supplied input, which allows an authenticated user to cause a denial of service. Mattermost Advisory ID: MMSA-2026-00713

Details

CVSS Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

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