CVE-2026-27509 HIGH

CVE-2026-27509: Unitree Go2 Missing DDS Authentication Enables Adjacent RCE

Vendor Unitreerobotics
Product Unitree Go2
Weakness CWE-306 · Missing auth
Published February 26, 2026
Last update May 26, 2026

CVSS base score

8.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Unitree Go2 firmware versions V1.1.7 through V1.1.9, and V1.1.11 (EDU) do not implement DDS authentication or authorization for the Eclipse CycloneDDS topic rt/api/programming_actuator/request handled by actuator_manager.py. A network-adjacent, unauthenticated attacker can join DDS domain 0 and publish a crafted message (api_id=1002) containing arbitrary Python, which the robot writes to disk under /unitree/etc/programming/ and binds to a physical controller keybinding. When the keybinding is pressed, the code executes as root and the binding persists across reboots.

Key dates

02Disclosure timeline

February 26, 2026 CVE published
May 26, 2026 Record updated