VULNERABILITY INTELLIGENCE

CVE-2026-28458

CVSS score8.1 HIGH
EPSS probability0.35%
CISA KEVNot currently listed
Published2026-03-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-306

Primary references