CVSS 3.1 Score 4.3 of 10 (medium)


Published Feb 9, 2024
Updated: Feb 15, 2024
CWE ID 400


CVE-2024-1402 is a vulnerability that affects Mattermost, an open-source messaging platform. The vulnerability allows an attacker to crash the mobile app of a user by sending a large number of non-existent custom emojis in a post. The vulnerability occurs because Mattermost fails to check if a custom emoji reaction exists and does not limit the number of custom emojis allowed in a post. The potential danger to organizations is that it could disrupt communication and impact productivity for users of the affected mobile app. To remediate the vulnerability, users should update to the latest version of Mattermost when a patch is released.

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