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// vulnerability record
cached · NVD via COSMOS syncCVE-2026-6961
HIGHpublished 2026-06-12 17:16 UTC · 13 days ago · modified 2026-06-15 20:56 UTC
7.6
CVSS / 10
// 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
// cvss 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:L
// weaknesses (CWE)
- CWE-22