Vulnerabilities

CVSS

6.5 Medium

Vector

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

Risk score

52.0

Published

2026-07-17

Status

Analyzed

Mattermost Desktop App versions <=6.2 6.0.2 5.6.13.0 fail to validate payloads sent from the Mattermost Web App to the Desktop App which allows a malicious server owner to crash the Mattermost Desktop App via changing the payload of a method to a malformed one. Mattermost Advisory ID: MMSA-2026-00678

Weaknesses

CWE-400

Coverage 1

vulnerability

Multiples vulnérabilités dans Mattermost Desktop App (18 juin 2026)

Multiple vulnerabilities have been discovered in the Mattermost Desktop App, potentially allowing for remote denial-of-service attacks and an unspecified security issue. These vulnerabilities affect older versions of the…

CERT-FR · Jun 18, 2026 Medium

CVE-2026-8075CVE-2026-9602vulnerabilitymattermostdesktop app

All articles mentioning it

Advisories and references

• mattermost.com/security-updates