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GHSA-q8p2-2hwc-jw64

Mattermost fails to restrict channel export of archived channels

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-24526

Packages

EcosystemPackageAffectedFixed in
Go github.com/mattermost/mattermost/server/v8 < 8.0.0-20250110161910-96195f1bd746 8.0.0-20250110161910-96195f1bd746
Go github.com/mattermost/mattermost/server/v8 >= 9.11.0-rc1, < 9.11.8 9.11.8
Go github.com/mattermost/mattermost/server/v8 >= 10.2.0-rc1, < 10.2.3 10.2.3
Go github.com/mattermost/mattermost/server/v8 >= 10.3.0-rc1, < 10.3.3 10.3.3
Go github.com/mattermost/mattermost/server/v8 >= 10.4.0-rc1, < 10.4.2 10.4.2

Details

As written in the advisory (Markdown source, shown as plain text).

Mattermost versions 10.1.x <= 10.1.3, 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to restrict channel export of archived channels when the "Allow users to view archived channels" is disabled which allows a user to export channel contents when they shouldn't have access to it

References

External links from the advisory. They lead to third-party sites.