Lsibilev

**Name of the Vulnerable Software and Affected Versions** Mattermost Mobile Apps versions <=2.22.0 **Description** The issue arises from the mobile application's inability to properly handle specially crafted attachment names. This allows an attacker to crash the mobile app for any user who has opened a channel containing the specially crafted attachment. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited. **Recommendations** For Mattermost Mobile Apps versions <=2.22.0, update to a version greater than 2.22.0 to resolve the issue. As a temporary workaround, consider avoiding channels with suspicious attachments to minimize the risk of the application crashing.