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.
Published: 2026-01-20
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6166-1 nodejs security update
Debian DSA Debian DSA DSA-6272-1 nodejs security update
History

Fri, 30 Jan 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Nodejs node.js
CPEs cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Vendors & Products Nodejs node.js
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Wed, 21 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-248
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Jan 2026 12:15:00 +0000

Type Values Removed Values Added
Title nodejs: Nodejs denial of service
Weaknesses CWE-770
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Wed, 21 Jan 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Nodejs
Nodejs nodejs
Vendors & Products Nodejs
Nodejs nodejs

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: 2026-01-21T18:52:57.892Z

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

Link: CVE-2025-59466

cve-icon Vulnrichment

Updated: 2026-01-21T18:42:04.744Z

cve-icon NVD

Status : Analyzed

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

Modified: 2026-01-30T20:25:11.810

Link: CVE-2025-59466

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-01-20T20:41:55Z

Links: CVE-2025-59466 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-21T11:18:49Z

Weaknesses