CVE-2026-15814mediumCWE-409

Uploading a crafted image causes excessive memory allocation in the Mattermost Server

13Vexday Risk Score

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

ssvc Trackcvss 6.5epss 0.2%

probabilidad de explotación

0.2%top 85% de las CVE

explotación observada

noninguna fuente lo reporta

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 limit the amount of memory allocated when decoding uploaded image files which allows an authenticated user to cause excessive server memory consumption and potential denial of service via uploading a specially crafted image as a profile picture, channel file attachment, team icon, or custom brand image. Mattermost Advisory ID: MMSA-2026-00719

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

Productos afectados

Mattermost · Mattermost

Referencias

https://mattermost.com/security-updates