Headline
GHSA-w6xh-c82w-h997: Mattermost webapp crash via a crafted post
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2025-20621
Mattermost webapp crash via a crafted post
Moderate severity GitHub Reviewed Published Jan 16, 2025 to the GitHub Advisory Database • Updated Jan 16, 2025
Package
gomod github.com/mattermost/mattermost/server/v8 (Go)
Affected versions
>= 10.2.0, < 10.2.1
>= 10.1.0, <= 10.1.3
>= 10.0.0, <= 10.0.3
>= 9.11.0, <= 9.11.5
< 8.0.0-20241127161322-25ff7a3779a5
Patched versions
10.2.1
10.1.4
10.0.4
9.11.6
8.0.0-20241127161322-25ff7a3779a5
Published to the GitHub Advisory Database
Jan 16, 2025
Last updated
Jan 16, 2025