Node.js up to 25.2.1 async_hooks.createHook denial of service

Summaryinfo

A vulnerability marked as problematic has been reported in Node.js up to 25.2.1. This issue affects the function async_hooks.createHook. This manipulation causes denial of service. This vulnerability is registered as CVE-2025-59466. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Node.js up to 25.2.1. It has been declared as problematic. Affected by this vulnerability is the function async_hooks.createHook. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

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.

It is possible to read the advisory at nodejs.org. This vulnerability is known as CVE-2025-59466 since 09/16/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 296677 (SUSE SLES15 / openSUSE 15 Security Update : nodejs22 (SUSE-SU-2026:0295-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (296677) and CERT Bund (WID-SEC-2026-0098). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• RESF Rocky Linux
• Open Source Node.js

Productinfo

Type

• JavaScript Library

Name

• Node.js

Version

• 8.x
• 9.x
• 10.x
• 11.x
• 12.x
• 13.x
• 14.x
• 15.x
• 16.x
• 17.x
• 18.x
• 20.19.0
• 20.19.1
• 20.19.2
• 20.19.3
• 20.19.4
• 20.19.5
• 20.19.6
• 22.21.0
• 22.21.1
• 24.0
• 24.1
• 24.2
• 24.3
• 24.4
• 24.5
• 24.6
• 24.7
• 24.8
• 24.9
• 24.10
• 24.11
• 24.12.0
• 25.2.0
• 25.2.1

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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CVSSv3info

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Threat Intelligenceinfo

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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