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.
References (3)
Core 3
Core References
Vendor Advisory vendor-advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6h
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpoint
Scores
CVSS v3
8.1
EPSS
0.0029
EPSS Percentile
21.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-306
Status
published
Products (3)
npm/moltbot
0npm
npm/openclaw
2026.1.20 - 2026.2.1npm
openclaw/openclaw
2026.1.20 - 2026.2.1
Published
Mar 05, 2026
Tracked Since
Mar 06, 2026