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.
History

Tue, 20 Jan 2026 20:45:00 +0000

Type Values Removed Values Added
Description 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.
References
Metrics cvssV3_0

{'score': 5.9, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-01-20T20:41:55.628Z

Reserved: 2025-09-16T15:00:07.876Z

Link: CVE-2025-59466

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-20T21:16:04.110

Modified: 2026-01-20T21:16:04.110

Link: CVE-2025-59466

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.