VDB-316948 · CVE-2025-27209 · EUVD-2025-21940

Node.js up to 24.4.0 V8 denial of service

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6.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Node.js up to 24.4.0. Impacted is an unknown function of the component V8. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2025-27209. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Node.js up to 24.4.0 and classified as problematic. This vulnerability affects some unknown functionality of the component V8. 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. CVE summarizes:

The V8 release used in Node.js v24.0.0 has changed how string hashes are computed using rapidhash. This implementation re-introduces the HashDoS vulnerability as an attacker who can control the strings to be hashed can generate many hash collisions - an attacker can generate collisions even without knowing the hash-seed. * This vulnerability affects Node.js v24.x users.

The advisory is shared for download at nodejs.org. This vulnerability was named CVE-2025-27209 since 02/20/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 242134 (Node.js 20.x < 20.19.4 / 22.x < 22.17.1 / 24.x < 24.4.1 Multiple Vulnerabilities (Tuesday, July 15, 2025 Security Releases).), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 24.4.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (242134), EUVD (EUVD-2025-21940) and CERT Bund (WID-SEC-2025-1578). Once again VulDB remains the best source for vulnerability data.

Affected

IBM Business Automation Workflow
Open Source Node.js

Productinfo

Type

JavaScript Library

Name

Node.js

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (hackerone): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 242134
Nessus Name: Node.js 20.x < 20.19.4 / 22.x < 22.17.1 / 24.x < 24.4.1 Multiple Vulnerabilities (Tuesday, July 15, 2025 Security Releases).