| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-server | ≥ 10.4.0+incompatible, < 10.4.3+incompatible≥ 10.5.0+incompatible, < 10.5.1+incompatible≥ 9.11.0+incompatible, < 9.11.10+incompatible | 10.4.3+incompatible10.5.1+incompatible9.11.10+incompatible |
| github.com/mattermost/mattermost-server/v5 | all versions | |
| github.com/mattermost/mattermost-server/v6 | all versions | |
| github.com/mattermost/mattermost/server/v8 | ≥ 10.4.0, < 10.4.3≥ 10.5.0, < 10.5.1≥ 9.11.0, < 9.11.10< 8.0.0-20250218121836-2b5275d87136 | 10.4.310.5.19.11.108.0.0-20250218121836-2b5275d87136 |
| mattermost server | = 10.5.0≥ 10.4.0, < 10.4.3≥ 9.11.0, < 9.11.10 | 10.4.39.11.10 |
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
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