CWE
400
Advisory Published
Updated

GHSA-32h7-7j94-8fc2

First published: Fri Feb 09 2024(Updated: )

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post. 

Affected SoftwareAffected VersionHow to fix
go/github.com/mattermost/mattermost/server/v8>=9.1.0<9.1.5
9.1.5
go/github.com/mattermost/mattermost/server/v8>=9.2.0<9.2.4
9.2.4
go/github.com/mattermost/mattermost/server/v8<8.1.8
8.1.8

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