CVE-2026-33622

PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab v0.8.3 through v0.8.5 allow arbitrary JavaScript execution through POST /wait and POST /tabs/id/wait when the request uses fn mode, even if security.allowEvaluate is disabled. POST /evaluate...

CVE-2026-33622 A PinchTab Security Policy Bypass in /wait Allows Arbitrary JavaScript Execution

PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab v0.8.3 through v0.8.5 allow arbitrary JavaScript execution through POST /wait and POST /tabs/id/wait when the request uses fn mode, even if security.allowEvaluate is disabled. POST /evaluate...

A PinchTab Security Policy Bypass in /wait Allows Arbitrary JavaScript Execution

Summary PinchTab v0.8.3 through v0.8.5 allow arbitrary JavaScript execution through POST /wait and POST /tabs/id/wait when the request uses fn mode, even if security.allowEvaluate is disabled. POST /evaluate correctly enforces the security.allowEvaluate guard, which is disabled by default. Howeve...