Description
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.2, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service (server OOM) via uploading a crafted TIFF file or posting a URL that serves one.. Mattermost Advisory ID: MMSA-2026-00648
CVSS 6.5EPSS 0.245%Risque 0.66
Voir la source- Publication
- 2026-05-22 11:16:23
- Versions concernées
- <=11.6.0,<=11.5.3,<=11.4.4,<=10.11.14
- Type
- Logiciel critique
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H