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CVE-2026-28458 - Vulnerability Analysis

HighCVSS: 8.1

Last Updated: March 6, 2026

OpenClaw - Authentication Bypass

Published: March 5, 2026Updated: March 6, 2026Remote Exploitable

Overview

OpenClaw < 2026.2.1 contains a broken authentication vulnerability in the Browser Relay /cdp WebSocket endpoint that does not require authentication tokens, letting attackers steal session cookies and execute JavaScript in other tabs, exploit requires the extension to be installed and enabled.

Severity & Score

Severity: High

CVSS Score: 8.1

Impact

Attackers can steal session cookies and execute JavaScript in other browser tabs, leading to session hijacking and potential account compromise.

Mitigation

Update to version 2026.2.1 or later.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6h
https://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpoint
https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-28458
Severity: High
CVSS Score: 8.1
Type: broken_authentication
Status: new

CWE

CWE-306

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N