NetSight
medium4.3

CVE-2024-4182

Mattermost crashes web clients via a malformed custom status

Impact

Mattermost versions 9.6.0, 9.5.x before 9.5.3, 9.4.x before 9.4.5, and 8.1.x before 8.1.12 fail to handle JSON parsing errors in custom status values, which allows an authenticated attacker to crash other users' web clients via a malformed custom status.

Affected packages

EcosystemPackageAffectedFixed in
gogithub.com/mattermost/mattermost-server>= 8.1.0, <= 8.1.118.1.12

Affected products

VendorProductAffected versions
MattermostMattermost Server
from 8.1.0 before 8.1.12
from 9.4.0 before 9.4.5
from 9.5.0 before 9.5.3
from 9.6.0 before 9.6.1

Weakness classification

References