Upstream information

CVE-2026-9697 at MITRE

Description

Impact:
undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI (socks5:// or socks://). The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user-configured ca, cert, key, rejectUnauthorized, and servername settings.

Applications that pin to an internal or corporate CA via requestTls.ca will, when their proxy URI is SOCKS5, get the default Mozilla CA bundle as the trust anchor instead. Any cert signed by any publicly-trusted CA for the target hostname is accepted, breaking the intended pin and enabling MITM read and tamper of the HTTPS exchange.

Affected applications are those that use undici's ProxyAgent (or Socks5ProxyAgent directly) with SOCKS5 AND rely on requestTls for TLS scope restriction. The bug was introduced in undici 7.23.0 when SOCKS5 support was added.

Patches:
Upgrade to undici v7.28.0 or v8.5.0.

Workarounds:
No workaround is available within the SOCKS5 path. If a SOCKS5 proxy with TLS scope restriction is required and an upgrade is not yet possible, route the traffic through an HTTP-proxy ProxyAgent instead, where requestTls is honored correctly.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (0b0ca135-0b70-47e7-9f44-1890c2a1c46c) CNA (openjs)
Base Score 7.4 7.4
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network Network
Attack Complexity High High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact None None
CVSSv3 Version 3.1 3.1
No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 10
  • nodejs24 >= 24.18.0-1.el10_2
  • nodejs24-devel >= 24.18.0-1.el10_2
  • nodejs24-docs >= 24.18.0-1.el10_2
  • nodejs24-full-i18n >= 24.18.0-1.el10_2
  • nodejs24-libs >= 24.18.0-1.el10_2
  • nodejs24-npm >= 11.16.0-1.24.18.0.1.el10_2
 Patchnames:
RHSA-2026:35841
SUSE Liberty Linux 9
  • nodejs >= 24.18.0-1.module+el9.8.0+24456+b244c3b4
  • nodejs-devel >= 24.18.0-1.module+el9.8.0+24456+b244c3b4
  • nodejs-docs >= 24.18.0-1.module+el9.8.0+24456+b244c3b4
  • nodejs-full-i18n >= 24.18.0-1.module+el9.8.0+24456+b244c3b4
  • nodejs-libs >= 24.18.0-1.module+el9.8.0+24456+b244c3b4
  • nodejs-nodemon >= 3.0.3-3.module+el9.8.0+24355+35d95b59
  • nodejs-packaging >= 2021.06-6.module+el9.8.0+24355+35d95b59
  • nodejs-packaging-bundler >= 2021.06-6.module+el9.8.0+24355+35d95b59
  • npm >= 11.16.0-1.24.18.0.1.module+el9.8.0+24456+b244c3b4
  • v8-13.6-devel >= 13.6.233.17-1.24.18.0.1.module+el9.8.0+24456+b244c3b4
 Patchnames:
RHSA-2026:35891

SUSE Timeline for this CVE

CVE page created: Wed Jun 17 22:09:28 2026
CVE page last modified: Wed Jul 8 20:24:24 2026