CVE-2026-21710

A flaw in Node.js HTTP request handling causes an uncaught TypeError when a request is received with a header named proto and the application accesses req.headersDistinct. When this occurs, dest"proto" resolves to Object.prototype rather than undefined, causing .push to be called on a non-array...

Denial Of Service (DoS)

Node.js is vulnerable to Denial of Service DoS. The vulnerability is due to improper error handling when asynchooks.createHook is enabled, where "Maximum call stack size exceeded" errors become uncatchable and terminate the process instead of reaching uncaughtException, allowing attackers to...

AZL-74973 CVE-2025-59466 affecting package nodejs18 18.20.3-11

We have identified a bug in Node.js error handling where "Maximum call stack size exceeded" errors become uncatchable when asynchooks.createHook is enabled. Instead of reaching process.on'uncaughtException', the process terminates, making the crash unrecoverable. Applications that rely on...