| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-server | ≥ 10.2.0-rc1+incompatible, < 10.2.3+incompatible≥ 10.3.0-rc1+incompatible, < 10.3.3+incompatible≥ 10.4.0-rc1+incompatible, < 10.4.2+incompatible≥ 9.11.0-rc1+incompatible, < 9.11.8+incompatible | 10.2.3+incompatible10.3.3+incompatible10.4.2+incompatible9.11.8+incompatible |
| github.com/mattermost/mattermost-server/v5 | all versions | |
| github.com/mattermost/mattermost-server/v6 | all versions | |
| github.com/mattermost/mattermost/server/v8 | ≥ 10.2.0-rc1, < 10.2.3≥ 10.3.0-rc1, < 10.3.3≥ 10.4.0-rc1, < 10.4.2≥ 9.11.0-rc1, < 9.11.8< 8.0.0-20250122165010-4ed702ccff4e | 10.2.310.3.310.4.29.11.88.0.0-20250122165010-4ed702ccff4e |
| mattermost server | ≥ 10.2.0, < 10.2.3≥ 10.3.0, < 10.3.3≥ 10.4.0, < 10.4.2≥ 9.11.0, < 9.11.8 | 10.2.310.3.310.4.29.11.8 |
Mattermost versions 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 properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.
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