CVE-2026-5942 页面生命周期管理缺陷导致程序崩溃

/* * PoC for CVE-2026-5942 * This script demonstrates a conceptual trigger for the lifecycle management flaw. * Note: Actual exploitation requires specific document structure manipulation. */ function triggerVulnerability() { // Simulate a document object let docComponent = { state: 'active', data: new ArrayBuffer(1024) }; // Step 1: Simulate a document structure change that desyncs state console.log("[+] Initiating document structure change..."); // Malicious operation: Invalidate the object without updating state // In a real scenario, this might be a specific API call or PDF operation let invalidatedRef = docComponent.data; // Simulate lifecycle event that should clean up but fails due to desync docComponent.state = 'invalid'; // Step 2: Attempt to access the invalidated object try { // This simulates the crash condition described in the CVE if (docComponent.state !== 'active' && invalidatedRef) { console.log("[-] Accessing invalidated object..."); // Triggering the access violation (conceptual) let view = new DataView(invalidatedRef); view.getInt32(0); } } catch (e) { console.log("[!] Crash occurred: " + e.message); } } triggerVulnerability();