CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.3. Exploitation may require the attacker to be authenticated. It may lead to a denial-of-service condition.
CVE
CVE-2026-26246
Severity
MEDIUM
CVSS
4.3
EPSS
0.22%
Original NVD Description
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to bound memory allocation when processing PSD image files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted PSD file. Mattermost Advisory ID: MMSA-2026-00572
Related CVEs
Other vulnerabilities affecting the same vendor(s)