CVE-2026-94111 Tencent BrowserSkill through 0.3.0 Origin Validation Error in Local WebSocket Daemon
Attackers can bypass WebSocket origin validation to intercept and manipulate browser content and screenshots via a malicious extension.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94111?
CVE-2026-94111 is a medium-severity authentication bypass vulnerability in Tencent BrowserSkill, published on 20 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Tencent BrowserSkill through 0.3.0 contains an authentication bypass vulnerability in the local daemon WebSocket origin validation that accepts any chrome-extension origin with 32 characters in range a-p. Attackers can register a malicious extension as a browser client to intercept and manipulate page content, DOM, and screenshots returned to the AI agent.
Weakness: CWE-346
Which versions are affected by CVE-2026-94111?
How do I fix CVE-2026-94111?
No fix has been published for CVE-2026-94111 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-94111 being exploited?
There is no known exploitation of CVE-2026-94111 in the wild and no public exploit code.
Sources
Also known as GHSA-x6f2-qp26-2xrh.