Orta CVSS 5.3
CVE-2026-10556: Mattermost Server: güvenlik açığı
Açıklama (NVD)
Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate null entries in Microsoft Graph webhook notification payloads, which allows an unauthenticated attacker to crash the Microsoft Calendar plugin process and deny calendar integration service to all users on the instance via a crafted {{POST}} request to the public webhook endpoint.. Mattermost Advisory ID: MMSA-2026-00693
Özet bilgiler
- Ürün
- Mattermost Mattermost Server
- CVSS v3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- %0,42 (yüzdelik 37)
- CWE
- CWE-754
- Yama
- Yok / bilinmiyor
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| mattermost-mattermost-server | 10.11.0 | — | 10.11.23 |
| mattermost-mattermost-server | 11.7.0 | — | 11.7.8 |
| mattermost-mattermost-server | 11.8.0 | — | 11.8.5 |
| mattermost-mattermost-server | 11.9.0 | — | 11.9.1 |