CVE-2026-54141

Summary

A missing interactive approval context in OpenHuman's Yuanbao channel allows remote attackers to trigger privileged node_exec operations without user approval, leading to arbitrary code execution as the host user.

Exploitability

Exploitation requires a configured Yuanbao channel, an open direct message channel, and successful model selection of node_exec under the default Supervised policy with Node enabled; the attack is non-trivial due to AC:H but feasible for targeted threat actors.

Blast radius

Successful exploitation grants full compromise of confidentiality, integrity, and availability as the OpenHuman user, including remote code execution and potential lateral movement from the compromised host.

Detection

Monitor for unexpected node_exec tool calls originating from Yuanbao-channel AgentTurnRequests without a preceding APPROVAL_CHAT_CONTEXT in logs; look for process creation events of shell or script interpreters initiated by the OpenHuman process following such requests.

Prioritized remediation

Upgrade to OpenHuman version 0.57.13 or later, which establishes the required interactive approval context for Yuanbao direct messages.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.