CVE-2026-20719

MEDIUM

4.3

Descripcion

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to prevent rendering of external SVGs on link embeds which allows unauthenticated users to crash the Mattermost webapp and desktop app via creating an issue or PR on GitHub.. Mattermost Advisory ID: MMSA-2026-00595

Detalles CVE

Puntuacion CVSS v3.14.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado3/25/2026

Ultima modificacion3/26/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

mattermost:mattermost_server

Debilidades (CWE)

CWE-754

Referencias

https://mattermost.com/security-updates(responsibledisclosure@mattermost.com)

Correlaciones IOC

Sin correlaciones registradas

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