| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-plugin-msteams | < 1.15.1-0.20260213190728-6fe4d295592e | 1.15.1-0.20260213190728-6fe4d295592e |
| mattermost server | ≤ 2.3.1 |
Mattermost Plugins versions <=2.3.1 fail to limit the request body size on the {{/lifecycle}} webhook endpoint which allows an authenticated attacker to cause memory exhaustion and denial of service via sending an oversized JSON payload. Mattermost Advisory ID: MMSA-2026-00610.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free