CVE-2026-94111: Tencent BrowserSkill authentication bypass in local daemon WebSocket

Summary

Tencent BrowserSkill through 0.3.0 contains an authentication bypass in the local daemon WebSocket origin validation. The validation accepts any chrome-extension origin made of 32 characters in the range a-p, so an attacker can register a malicious extension as a browser client. That extension can intercept and manipulate the page content, DOM and screenshots returned to the AI agent.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

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