Description
obot versions before v0.21.1 fail to enforce Access Control Rules on the /mcp-connect endpoint, allowing any authenticated user to connect to restricted MCP servers if they possess the server ID. Attackers can bypass authorization checks to access and manipulate sensitive backend systems through MCP tool calls using stored OAuth credentials.
Metrics
CVSS 3.1 9.6/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Sep 27, 2026
- Last modified
- Sep 30, 2026
- NVD status
- Deferred