CVE-2026-2299Improper Access Control in Mattermost Google Drive Plugin File Creation Endpoint
Updated under an hour ago ()
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It affects Mattermost Google Drive Plugin and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 4.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Mattermost
- NVD analysis
- Analyzed
- Record last updated
- Jun 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Mattermost Mattermost Google Drive Plugin mattermost:google_drive_plugin (from the name) | through 1.0.0; 1.1.0 not affected | CNA record |
mattermost google_drive mattermost:google_drive | before 1.1.0; 1.1.0; 1.1.0 | NVD |
References
- https://github.com/mattermost/mattermost-plugin-google-drive/releases/tag/v1.1.0product, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.