OpenJS Foundation Node.js up to 22.23.4/24.22.2/26.13.0 Proxy Configuration ProxyConfig.href information disclosure

Summaryinfo

A vulnerability labeled as problematic has been found in OpenJS Foundation Node.js up to 22.23.4/24.22.2/26.13.0. Affected by this issue is some unknown functionality of the file ProxyConfig.href of the component Proxy Configuration. The manipulation results in information disclosure. This vulnerability is reported as CVE-2026-123871. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in OpenJS Foundation Node.js up to 22.23.4/24.22.2/26.13.0. Affected is an unknown part of the file ProxyConfig.href of the component Proxy Configuration. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

Node.js discloses proxy credentials in ERR_PROXY_INVALID_CONFIG error messages. CVE-2026-48615 established that a proxy credential must not appear in a Node.js error message and redacted the username and password from ProxyConfig.href, but that fix missed four error paths in the same subsystem, one of them inside the same constructor, which interpolate the raw proxy URL, credentials included, into an ERR_PROXY_INVALID_CONFIG message. The proxy URL comes from the environment, but the defect is the sink: a secret that Node.js redacts everywhere else is emitted verbatim into a much wider audience than the process environment, such as stderr, container logs, log aggregation, and crash reporting services. This vulnerability affects Node.js 26.x, 24.x, and 22.x.

The advisory is available at nodejs.org. This vulnerability is traded as CVE-2026-123871 since 11/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 22.23.5, 24.22.3 or 26.13.1 eliminates this vulnerability.

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Productinfo

Type

• JavaScript Library

Vendor

• OpenJS Foundation

Name

• Node.js

Version

• 22.23.0
• 22.23.1
• 22.23.2
• 22.23.3
• 22.23.4
• 24.22.0
• 24.22.1
• 24.22.2
• 26.0
• 26.1
• 26.2
• 26.3
• 26.4
• 26.5
• 26.6
• 26.7
• 26.8
• 26.9
• 26.10
• 26.11
• 26.12
• 26.13.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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