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Advisories

obot before v0.21.1 Authorization Bypass via /mcp-connect

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severity
critical
date
Affecting

  • obot >= 0, < 0.21.1

CWE
  • CWE-639 Authorization Bypass Through User-Controlled Key
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
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.

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