Improper certificate validation in Unitree Go2 chat_go client
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
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unitree Robotics | Unitree Go2 | 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 | — | No fix listed | CNA |
- 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
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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
- 2026-10-25 Threatist record created from CVE-2026-115996
- 2026-10-25 Priority changed: MEDIUM → LOW
- 2026-10-26 CISA SSVC decision points changed
- 2026-10-27 Alias added: GHSA-c3qh-x7xm-9m28
References
—
More Unitree Robotics vulnerabilities
- 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
- CVE-2026-115996 · CVE Program
- CVE-2026-115996 · NVD
- FIRST EPSS
- GHSA-c3qh-x7xm-9m28 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences