Descripción
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted 7zip file with excessive folder declarations.. Mattermost Advisory ID: MMSA-2026-00573
CVSS 4.3EPSS 0.24%Riesgo 0.44
Ver fuente- Publicación
- 2026-05-18 08:16:14
- Versiones afectadas
- <= 11.5.1, <= 10.11.13, <= 11.4.3
- Tipo
- Core software
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L