Vulnerability Description
OpenClaw version 2026.1.20 prior to 2026.2.1 contains a vulnerability in the Browser Relay (extension must be installed and enabled) /cdp WebSocket endpoint in which it does not require authentication tokens, allowing websites to connect via loopback and access sensitive data. Attackers can exploit this by connecting to ws://127.0.0.1:18792/cdp to steal session cookies and execute JavaScript in other browser tabs.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | >= 2026.1.20, < 2026.2.1 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181aePatch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6hVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-Third Party Advisory
FAQ
What is CVE-2026-28458?
CVE-2026-28458 is a vulnerability with a CVSS score of 8.1 (HIGH). OpenClaw version 2026.1.20 prior to 2026.2.1 contains a vulnerability in the Browser Relay (extension must be installed and enabled) /cdp WebSocket endpoint in which it does not require authentication...
How severe is CVE-2026-28458?
CVE-2026-28458 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28458?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.