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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| obot-platform | obot | < 0.21.1 | 0.21.1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/obot-platform/obot | < 0.21.1 | 0.21.1 | GHSA-vw82-7fv8-r6gp |
References
- GitHub Security Advisory (GHSA-vw82-7fv8-r6gp) vendor-advisory
- VulnCheck Advisory: obot before v0.21.1 Authorization Bypass via /mcp-connect third-party-advisory