CVE-2025-4981
Description
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to sanitize filenames in the archive extractor which allows authenticated users to write files to arbitrary locations on the filesystem via uploading archives with path traversal sequences in filenames, potentially leading to remote code execution. The vulnerability impacts instances where file uploads and document search by content is enabled (FileSettings.EnableFileAttachments = true and FileSettings.ExtractContent = true). These configuration settings are enabled by default.
How to fix
- mattermost mattermost_server9.11.16, 10.5.6, 10.6.6, 10.7.3 or later
- github.com/mattermost/mattermost-server0.0.0-20250519205859-65aec10162f6, 9.11.16+incompatible, 10.5.6+incompatible, 10.6.6+incompatible, 10.7.3+incompatible, 10.8.1+incompatible or later
- github.com/mattermost/mattermost/server/v88.0.0-20250519205859-65aec10162f6, 10.5.6, 9.11.16, 10.8.1, 10.7.3, 10.6.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 9.11.0 ≤ v < 9.11.16, 10.5.0 ≤ v < 10.5.6, 10.6.0 ≤ v < 10.6.6, 10.7.0 ≤ v < 10.7.3, 10.8.0 | 9.11.16, 10.5.6, 10.6.6, 10.7.3 |
| github.com/mattermost/mattermost-serverGo | v < 0.0.0-20250519205859-65aec10162f6, 9.11.0+incompatible ≤ v < 9.11.16+incompatible, 10.5.0+incompatible ≤ v < 10.5.6+incompatible, 10.6.0+incompatible ≤ v < 10.6.6+incompatible, 10.7.0+incompatible ≤ v < 10.7.3+incompatible, 10.8.0+incompatible ≤ v < 10.8.1+incompatible | 0.0.0-20250519205859-65aec10162f6, 9.11.16+incompatible, 10.5.6+incompatible, 10.6.6+incompatible, 10.7.3+incompatible, 10.8.1+incompatible |
| github.com/mattermost/mattermost/server/v8Go | v < 8.0.0-20250519205859-65aec10162f6, 10.5.0 ≤ v < 10.5.6, 9.11.0 ≤ v < 9.11.16, 10.8.0 ≤ v < 10.8.1, 10.7.0 ≤ v < 10.7.3, 10.6.0 ≤ v < 10.6.6 | 8.0.0-20250519205859-65aec10162f6, 10.5.6, 9.11.16, 10.8.1, 10.7.3, 10.6.6 |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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