Origin Validation Error Affecting openclaw package, versions <2026.2.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-OPENCLAW-15250554
- published9 Feb 2026
- disclosed8 Feb 2026
- creditJohn Walker
Introduced: 8 Feb 2026
CVE-2026-28458 (opens in a new tab)How to fix?
Upgrade openclaw to version 2026.2.1 or higher.
Overview
openclaw is a 🦞 OpenClaw — Personal AI Assistant
Affected versions of this package are vulnerable to Origin Validation Error via the /cdp WebSocket endpoint that accepts arbitrary Chrome DevTools Protocol commands. An attacker can bypass the intended localhost-only restriction by running malicious JavaScript in the victim’s browser, which connects from the victim’s own network interface and is therefore treated as “local.” Once connected, the attacker can issue CDP commands to control the browser - including executing JavaScript in other tabs - enabling theft of session tokens and injection of malicious code into active sessions.