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LOW3.1

GHSA-j639-m367-75cf

Mattermost Incorrect Authorization vulnerability

Quick fix

GHSA-j639-m367-75cf — github.com/mattermost/mattermost/server/v8: upgrade to the fixed version with the command below.

go get github.com/mattermost/mattermost/server/v8@v10.5.2

Details

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to prevent Wrangler posts from triggering AI responses. This vulnerability allows users without access to the AI bot to activate it by attaching the activate_ai override property to a post via the Wrangler plugin, provided both the AI and Wrangler plugins are enabled.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/github.com/mattermost/mattermost/server/v8
Introduced in: 10.5.0Fixed in: 10.5.2
Fixgo get github.com/mattermost/mattermost/server/v8@v10.5.2
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 10.4.0Fixed in: 10.4.4
Fixgo get github.com/mattermost/mattermost/server/v8@v10.4.4
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 9.11.0Fixed in: 9.11.10
Fixgo get github.com/mattermost/mattermost/server/v8@v9.11.10
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 0Fixed in: 8.0.0-20250314142426-c049748b8863
Fixgo get github.com/mattermost/mattermost/server/v8@v8.0.0-20250314142426-c049748b8863

References