CVE-2025-59466: Node.js

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

We have identified a bug in Node.js error handling where "Maximum call stack size exceeded" errors become uncatchable when `async_hooks.createHook()` is enabled. Instead of reaching `process.on('uncaughtException')`, the process terminates, making the crash unrecoverable. Applications that rely on `AsyncLocalStorage` (v22, v20) or `async_hooks.createHook()` (v24, v22, v20) become vulnerable to denial-of-service crashes triggered by deep recursion under specific conditions.

Affected products

• Node.js Node.js: from 20.0.0, before 20.20.0 (fixed in 20.20.0); from 22.0.0, before 22.22.0 (fixed in 22.22.0); from 24.0.0, before 24.13.0 (fixed in 24.13.0); from 25.0.0, before 25.3.0 (fixed in 25.3.0)

Published 2026-01-20. Last modified 2026-06-17.