CVE-2026-2299 — Improper Access Control in Mattermost Google Drive Plugin File Creation Endpoint

CVE-2026-2299

Improper Access Control in Mattermost Google Drive Plugin File Creation Endpoint PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Mattermost / Mattermost Google Drive Plugin	affected 0 through 1.0.0; unaffected 1.1.0

CWE

CWE-862

References

https://github.com/mattermost/mattermost-plugin-google-drive/releases/tag/v1.1.0

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.