CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.6. See the original NVD description below for full technical details.
CVE
CVE-2026-6961
Severity
HIGH
CVSS
7.6
EPSS
0.30%
Original NVD Description
Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 Mattermost fails to sanitize FileInfo.Name received from federated peers during shared channel file sync, which allows an attacker who controls a federated server to write files to arbitrary locations within the target server's filestore via path traversal sequences in the filename field.. Mattermost Advisory ID: MMSA-2026-00661
Related CVEs
Other vulnerabilities affecting the same vendor(s)