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MEDIUM6.5

GHSA-45v9-w9fh-33j6

Mattermost fails to properly validate post props

Quick fix

GHSA-45v9-w9fh-33j6 — github.com/mattermost/mattermost/server/v8: upgrade to the fixed version with the command below.

go get github.com/mattermost/mattermost/server/v8@v10.2.1

Details

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 validate post props which allows a malicious authenticated user to cause a crash via a malicious post.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/github.com/mattermost/mattermost/server/v8
Introduced in: 10.2.0Fixed in: 10.2.1
Fixgo get github.com/mattermost/mattermost/server/v8@v10.2.1
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 10.1.0Fixed in: 10.1.4
Fixgo get github.com/mattermost/mattermost/server/v8@v10.1.4
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 10.0.0Fixed in: 10.0.4
Fixgo get github.com/mattermost/mattermost/server/v8@v10.0.4
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 9.11.0Fixed in: 9.11.6
Fixgo get github.com/mattermost/mattermost/server/v8@v9.11.6
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 0Fixed in: 8.0.0-20241127161322-25ff7a3779a5
Fixgo get github.com/mattermost/mattermost/server/v8@v8.0.0-20241127161322-25ff7a3779a5

References