CVE-2026-8683

Description

Mattermost Desktop App versions <=6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Mattermost Desktop App which allows a malicious server owner to crash the application via including a script to call window.open on a very large URL. Mattermost Advisory ID: MMSA-2026-00652

References

https://mattermost.com/security-updates

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3