CVE-2022-3257 Information

Description

Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post which allows authenticated users to cause resource exhaustion while processing the file resulting in server-side Denial of Service.

Reference

https://hackerone.com/reports/1620170 https://mattermost.com/security-updates/