A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages.

When proxy credentials are embedded in the proxy URL, they may be exposed through error handling paths and captured by logs, diagnostics, or other error consumers.

This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

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Fixes

Solution

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Workaround

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History

Sat, 27 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Title Node.js Proxy Credential Exposure via ERR_PROXY_TUNNEL Error Messages nodejs: Node.js: Information disclosure of proxy credentials via proxy tunnel error handling
Weaknesses CWE-209
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 26 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 26 Jun 2026 07:30:00 +0000

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

Fri, 26 Jun 2026 03:00:00 +0000

Type Values Removed Values Added
Title Node.js Proxy Credential Exposure via ERR_PROXY_TUNNEL Error Messages

Fri, 26 Jun 2026 01:30:00 +0000

Type Values Removed Values Added
Description A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages. When proxy credentials are embedded in the proxy URL, they may be exposed through error handling paths and captured by logs, diagnostics, or other error consumers. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Weaknesses CWE-359
References
Metrics cvssV3_0

{'score': 5.9, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-06-26T13:35:00.592Z

Reserved: 2026-05-22T15:00:09.276Z

Link: CVE-2026-48615

cve-icon Vulnrichment

Updated: 2026-06-26T13:34:52.982Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-26T01:14:36Z

Links: CVE-2026-48615 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-27T02:00:10Z

Weaknesses