Vulnerability in Node.js Node
CVE-2025-59466
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Node.js Node — versions 20.19.6, 22.21.1, 24.12.0
- Node.js
Weakness classification (CWE)
References
- nodejs.org/en/blog/vulnerability/december-2025-security-releases (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-59466?
- CVE-2025-59466 is a high-severity vulnerability in Node.js Node, classified under CWE-248. CVSS score: 7.5/10. Published 2026-01-20.
- How severe is CVE-2025-59466?
- High severity. CVSS v3 base score is 7.5 out of 10.