Security Advisory

CVE-2026-3473

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-22 10:27:02

Last updated 2026-05-22 12:12:49

Assigner Mattermost

CVSS score 5.9

State PUBLISHED

Description

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs.. Mattermost Advisory ID: MMSA-2026-00620

← Browse all CVEs View on cve.org ↗