Vulnerability Details CVE-2026-93850
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 32.4%
CVSS Severity
CVSS v3 Score 6.5
References