GHSA-q7rx-w656-fwmv
Mattermost notified all users in the channel when using WebSockets to respond individually
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/mattermost/mattermost/server/v8 | < 8.1.7 | 8.1.7 |
| Go | github.com/mattermost/mattermost-server/v6 | < 8.1.7 | 8.1.7 |
Details
As written in the advisory (Markdown source, shown as plain text).
Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.
References
External links from the advisory. They lead to third-party sites.