NetSight
medium4.3

CVE-2024-24988

Mattermost denial of service through long emoji value

Impact

Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.

Affected packages

EcosystemPackageAffectedFixed in
gogithub.com/mattermost/mattermost/server/v8>= 9.3.0, < 9.3.19.3.1

Affected products

VendorProductAffected versions
MattermostMattermost Server
before 8.1.8
from 9.0.0 before 9.1.5
from 9.2.0 before 9.2.4

Weakness classification

References