Vulnerability DatabaseCVE-2026-2299
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CVE-2026-2299
Published:June 25, 2026
Updated:June 29, 2026
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 Packages
https://github.com/mattermost/mattermost-plugin-google-drive.git (GITHUB):
Affected version(s) >=v0.1.0-alpha <v1.1.0
Fix Suggestion:
Update to version v1.1.0
github.com/mattermost/mattermost-plugin-google-drive (GO):
Affected version(s) >=v0.1.0-alpha <v1.1.0
Fix Suggestion:
Update to version v1.1.0
Related Resources (1)
https://github.com/mattermost/mattermost-plugin-google-drive/releases/tag/v1.1.0
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CVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Missing Authorization
CWE-862
EPSS
Base Score:
0.12