Improper Output Neutralization for Logs in OpenClaw - #VU129442
Published: May 4, 2026
Vulnerability identifier: #VU129442
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-117
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to poison logs and influence downstream LLM-assisted workflows.
The vulnerability exists due to improper output neutralization for logs in src/gateway/server/ws-connection.ts when handling WebSocket connections that close before completing the connect or handshake process. A remote attacker can send crafted WebSocket header values to poison logs and influence downstream LLM-assisted workflows.
The impact depends on logs later being read or interpreted by an LLM or other automation, and user interaction is required.
Remediation
Install security update from vendor's website.