Mattermost crashes web clients via a malformed custom status
Moderate severity
GitHub Reviewed
Published
Apr 26, 2024
to the GitHub Advisory Database
•
Updated Apr 26, 2024
Package
Affected versions
>= 8.1.0, <= 8.1.11
>= 9.4.0, <= 9.4.4
>= 9.5.0, <= 9.5.2
>= 9.6.0-rc1, <= 9.6.0
Patched versions
8.1.12
9.4.5
9.5.3
9.6.1
Description
Published by the National Vulnerability Database
Apr 26, 2024
Published to the GitHub Advisory Database
Apr 26, 2024
Reviewed
Apr 26, 2024
Last updated
Apr 26, 2024
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.
References