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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Affected Vendors & Products
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History
Sat, 27 Jun 2026 00:15:00 +0000
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| 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 | |
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Fri, 26 Jun 2026 14:30:00 +0000
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Fri, 26 Jun 2026 07:30:00 +0000
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Fri, 26 Jun 2026 03:00:00 +0000
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| Title | Node.js Proxy Credential Exposure via ERR_PROXY_TUNNEL Error Messages |
Fri, 26 Jun 2026 01:30:00 +0000
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| 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 | |
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cvssV3_0
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Status: PUBLISHED
Assigner: hackerone
Published: 2026-06-26T01:14:36.524Z
Updated: 2026-06-26T13:35:00.592Z
Reserved: 2026-05-22T15:00:09.276Z
Link: CVE-2026-48615
Updated: 2026-06-26T13:34:52.982Z
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