CVE-2026-2299

MEDIUM CVSS 4.2 View on NVD ↗

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References

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

Published: Jun 25, 2026 20:17 UTC Modified: Jun 26, 2026 14:17 UTC