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MEDIUM6.5

GHSA-33r7-wjfc-7w98

Mattermost Uncontrolled Resource Consumption vulnerability

Quick fix

GHSA-33r7-wjfc-7w98 — github.com/mattermost/mattermost/server/v8: upgrade to the fixed version with the command below.

go get github.com/mattermost/mattermost/server/v8@v8.1.1

Details

Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/github.com/mattermost/mattermost/server/v8
Introduced in: 8.1.0Fixed in: 8.1.1
Fixgo get github.com/mattermost/mattermost/server/v8@v8.1.1
Go/github.com/mattermost/mattermost/server/v8
Introduced in: 8.0.0Fixed in: 8.0.2
Fixgo get github.com/mattermost/mattermost/server/v8@v8.0.2
Go/github.com/mattermost/mattermost-server/v6
Introduced in: 0Fixed in: 7.8.10
Fixgo get github.com/mattermost/mattermost-server/v6@v7.8.10

References