Description
Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to limit the number of @-mentions processed per message, allowing an authenticated attacker to crash the client applications of other users via large, crafted messages.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mattermost | Mattermost | 9.4.0 – ≤ 9.4.2, 9.3.0 – ≤ 9.3.1, 9.2.0 – ≤ 9.2.5, 8.1.0 – ≤ 8.1.9 | 9.5.0 |