TLS Certificate Validation Bypass in Node.js

Executive Summary

This vulnerability is a flaw in the Node.js TLS host verification process that allows an attacker to bypass certification validation.

It affects all supported Node.js release lines including versions 22, 24, and 26.

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Impact Analysis

An attacker exploiting this vulnerability could bypass TLS certificate validation, potentially allowing man-in-the-middle attacks or unauthorized interception of encrypted communications.

This could lead to exposure of sensitive data transmitted over supposedly secure connections.

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Compliance Impact

The vulnerability in Node.js TLS host verification allows an attacker to bypass certification validation, which can lead to a confidentiality impact. This type of flaw could potentially undermine the security controls required by standards and regulations such as GDPR and HIPAA that mandate protection of sensitive data and secure communications.

By bypassing TLS certificate validation, attackers might intercept or manipulate data transmissions, risking unauthorized access to personal or protected health information. Therefore, failure to patch this vulnerability could result in non-compliance with these regulations' requirements for data confidentiality and integrity.

Organizations using affected Node.js versions should update to the latest patched releases to maintain compliance and reduce the risk of data breaches.

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Mitigation Strategies

To mitigate this vulnerability, users should update Node.js to the latest patched versions in the supported release lines: Node.js 22, Node.js 24, and Node.js 26.

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