BaselineWatch
Desk

CVE-2026-2299

4.3 medium SSVC exploitation: none Analyzed

The Mattermost Google Drive plugin before version 1.1.0 fails to validate channel membership in the file creation endpoint, allowing authenticated users with a connected Google account to share Google Drive files to unauthorized private channels and disclose private channel membership.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 4.3 · mattermostNVD modified 2026-10-25 22:10

Affected (CPE criteria) 3

  • cpe:2.3:a:mattermost:google_drive:*:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:google_drive:1.1.0:rc1:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:google_drive:1.1.0:rc2:*:*:*:mattermost:*:*

References 1