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CVE-2025-59466

Published: 1/20/2026 Last updated: 1/21/2026 Reserved: 9/16/2025

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.

CNA assigner: hackerone (36234546-b8fa-4601-9d6f-f4e334aa8ea1) Requested by: n/a

Metrics

Version Score Severity Vector String
3.0 5.9 Medium CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Opam packages affected (1)

conf-npm

Products affected (1)

Product Vendor Version
node nodejs <= 1.15(L)

References (2)