Auth bypass in Unitree Go2
CVE-2026-27509
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.004 · change: -0.000
Affected products
- Unitree Go2
- Unitree Go2 Edu
- Unitree Go2 Edu Firmware — versions 1.1.11
- Unitree Go2 Firmware
- Unitreerobotics Unitree Go2 — versions 1.1.7, 1.1.11, 1.1.11 (EDU only)
Weakness classification (CWE)
References
- boschko.ca/unitree-go2-rce/ (Exploit, technical-description, Third Party Advisory, exploit)
- shop.unitree.com/products/unitree-go2 (Product, product)
- www.vulncheck.com/advisories/unitree-go2-missing-dds-authentication-enables-adj… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27509?
- CVE-2026-27509 is a high-severity vulnerability in Unitree Go2, classified under Missing Authentication for Critical Function. CVSS score: 8.0/10. Published 2026-02-26.
- How severe is CVE-2026-27509?
- High severity. CVSS v3 base score is 8.0 out of 10.