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Improper certificate validation in Unitree Go2 chat_go client

Priority LOW 28CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass, Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287 and CWE-295.

Summary

Unitree Robotics Unitree Go2 up to 1.1.13/1.1.14.1/1.1.15.1 contains improper certificate validation in the WebSocketClient.connect function of the chat_go component (CWE-295). The WSS client disables TLS server certificate validation. A remote attacker with high attack complexity and no privileges or user interaction can impersonate the server, affecting integrity.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A vulnerability was detected in Unitree Robotics Unitree Go2 up to 1.1.13/1.1.14.1/1.1.15.1. This affects the function WebSocketClient.connect of the file websocket.py of the component chat_go. Performing a manipulation results in improper certificate validation. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is reported as difficult. The vendor confirmed early: "These issues were previously submitted by the researcher through our Security Response Center platform and are tracked internally as follows: Submission 990504 corresponds to our internal ticket #616 (Go2 chat_go WSS client disabled TLS server certificate validation, CWE-295)."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00231 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Unitree RoboticsUnitree Go21.1.0; 1.1.1; 1.1.2; 1.1.3; 1.1.4; 1.1.5; 1.1.6; 1.1.7; 1.1.8; 1.1.9; 1.1.10; 1.1.11; 1.1.12; 1.1.13; 1.1.14.0; 1.1.14.1; 1.1.15.0; 1.1.15.1—No fix listedCNA
  • Unitree Go2 VendorUnitree Robotics Affected 1.1.0; 1.1.1; 1.1.2; 1.1.3; 1.1.4; 1.1.5; 1.1.6; 1.1.7; 1.1.8; 1.1.9; 1.1.10; 1.1.11; 1.1.12; 1.1.13; 1.1.14.0; 1.1.14.1; 1.1.15.0; 1.1.15.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:unitree_robotics:unitree_go2:*:*:*:*:*:*:*:*——Unitree Robotics
  • cpe:2.3:a:unitree_robotics:unitree_go2:*:*:*:*:*:*:*:* Versions — — ·Unitree Robotics

Remediation

The sources list no fixed version for Unitree Go2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-25 Threatist record created from CVE-2026-115996
  2. 2026-10-25 Priority changed: MEDIUM → LOW
  3. 2026-10-26 CISA SSVC decision points changed
  4. 2026-10-27 Alias added: GHSA-c3qh-x7xm-9m28

References

—

  • TI-2026-80120 OS command injection in Unitree Go2 chat_go set_volume function CVSS 4.0CRITICAL 9.4
  • TI-2026-53550 Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal CVSS 4.0HIGH 8.7
  • TI-2026-53551 Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack CVSS 4.0HIGH 7.7

Sources