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Ui Tars Desktop

1 CVEs product

Monthly

CVE-2026-81735 CRITICAL PATCH Act Now

Unauthenticated remote command execution affects the @agent-infra MCP servers shipped with ByteDance's UI-TARS-desktop, whose shared mcp-http-server helper defaulted its bind address to '::' (all interfaces) and only enforced authentication when a caller explicitly passed middleware. Because the commands and filesystem server entry points call startSseAndStreamableHttpMcpServer with only a host and port and no middleware, any client that can reach the listening port can invoke the run_command tool (routed to child_process.exec) or the file read/write tools with no credential. Reported by VulnCheck and rated CVSS 4.0 10.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Authentication Bypass Ui Tars Desktop
NVD GitHub
CVSS 4.0
10.0
CVSS 10.0
CRITICAL PATCH Act Now

Unauthenticated remote command execution affects the @agent-infra MCP servers shipped with ByteDance's UI-TARS-desktop, whose shared mcp-http-server helper defaulted its bind address to '::' (all interfaces) and only enforced authentication when a caller explicitly passed middleware. Because the commands and filesystem server entry points call startSseAndStreamableHttpMcpServer with only a host and port and no middleware, any client that can reach the listening port can invoke the run_command tool (routed to child_process.exec) or the file read/write tools with no credential. Reported by VulnCheck and rated CVSS 4.0 10.0; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Authentication Bypass Ui Tars Desktop
NVD GitHub

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