medium4.2
CVE-2026-2299
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…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Google Drive | before 1.1.0 Version 1.1.0 |