Medium [CVE-2026-48615] Information disclosure of proxy credentials via proxy tunnel error handling
This medium-severity Red Hat Linux advisory covers CVE-2026-48615 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.6 Extended Update Support.
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Summary
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**. A flaw was found in Node.js.
This information disclosure vulnerability allows an attacker to potentially capture sensitive proxy credentials through logs, diagnostics, or other error-consuming mechanisms. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-209. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images.
Red Hat fixing advisory: RHSA-2026:35841, RHSA-2026:35842, RHSA-2026:39246, RHSA-2026:39868, RHSA-2026:41947, RHSA-2026:35891, RHSA-2026:35892, RHSA-2026:52399, RHSA-2026:28727, RHSA-2026:29012, RHSA-2026:30172, RHSA-2026:7378, RHSA-2026:9455.
Affected products named by the advisory: Red Hat package: nodejs24; Red Hat package: nodejs22.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
- nodejs24-1:24.18.0-1.el10_2
- nodejs22-1:22.23.1-2.el10_2
- nodejs22-1:22.23.1-2.el10_0
- nodejs:24-8100020260630152626.6d880403
- nodejs:22-8100020260703140402.6d880403
- nodejs:24-9080020260626074955.rhel9
- nodejs:22-9080020260626075442.rhel9
- nodejs:22-9060020260804140259.rhel9
- nodejs22-main-22.23.1-1.hum1
- nodejs24-main-24.18.0-0.1.hum1
- nodejs26-main-26.4.0-1.2.hum1
- nodejs25-main-25.9.0-1.1.hum1
- nodejs20-main-20.20.2-1.hum1
- RHSA-2026:35841
- RHSA-2026:35842
- RHSA-2026:39246
- RHSA-2026:39868
- RHSA-2026:41947
- RHSA-2026:35891
- RHSA-2026:35892
- RHSA-2026:52399
- RHSA-2026:28727
- RHSA-2026:29012
- RHSA-2026:30172
- RHSA-2026:7378
- RHSA-2026:9455
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
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