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GO-2026-5325

Mattermost doesn't validate 7zip archive structure before processing in github.com/mattermost/mattermost-server

Details

Mattermost doesn't validate 7zip archive structure before processing in github.com/mattermost/mattermost-server.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/mattermost/mattermost-server/v5 before v5.3.2-0.20260325191733-fb11968f8798.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go / github.com/mattermost/mattermost-server
Introduced in: 10.11.0+incompatible Fixed in: 10.11.14+incompatible
Fix go get github.com/mattermost/mattermost-server@v10.11.14+incompatible
Go / github.com/mattermost/mattermost-server/v5
Introduced in: 0

No fixed version published yet for github.com/mattermost/mattermost-server/v5 (go modules). Pin to a known-safe version or switch to an alternative.

Go / github.com/mattermost/mattermost-server/v6
Introduced in: 0

No fixed version published yet for github.com/mattermost/mattermost-server/v6 (go modules). Pin to a known-safe version or switch to an alternative.

Go / github.com/mattermost/mattermost/server/v8
Introduced in: 0 Fixed in: 8.0.0-20260325191733-fb11968f8798
Fix go get github.com/mattermost/mattermost/server/v8@v8.0.0-20260325191733-fb11968f8798

References