CVSS 6.5 (medium) · published 2026-10-26
Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to bind the volume of text extracted from an uploaded PDF which allows an authenticated user to exhaust server memory and cause a denial of service via a crafted PDF whose compressed content stream expands into a very large amount of text.. Mattermost Advisory ID: MMSA-2026-00769
Affected products (NVD): mattermost mattermost_server
Fixed in (NVD): 11.7.11, 11.8.6, 11.9.2, 11.10.2
Weakness: CWE-409
Source: NVD CVE-2026-93850
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