CVE-2026-103758
HIGH
NVD
CVSS Score
8.1
Severity
HIGH
Published
Oct 01, 2026
Vendor
unknown
Description
Obot 0.21.1 through 0.24.1 contains an authorization bypass vulnerability that allows authenticated users to reach MCP servers because the checkUI deny list omits the /mcp-connect-composite/ route. Basic-role users with a composite MCP ID can proxy requests through mcpGateway.Proxy to invoke tools on MCP servers restricted by Access Control Rules.