CVE & CISA-KEV Catalog

CVE-2026-6734

HIGH

7.5

CVSS v3

Description

Impact: When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless of the intended destination. This causes cross-origin request routing: credentials and request data intended for origin B are sent to origin A, responses from the wrong origin are trusted, and HTTPS requests may be silently downgraded to HTTP. Impacted users are applications that use Socks5ProxyAgent (directly or via setGlobalDispatcher) and make requests to more than one origin. This was introduced in undici 7.23.0 via PR #4385 and affects all versions through 8.1.0. Patches: Upgrade to undici v7.26.0 or v8.2.0. Workarounds: Use a separate Socks5ProxyAgent instance per origin, or avoid using Socks5ProxyAgent with multiple origins.

CWE-346 CWE-940

How to fix

Remediation Available

node-undiciDebian

Fixed in:8.5.0+dfsg+~cs3.2.0-1CVE-2026-6734

nodejsRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.src::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

nodejsRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.src::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.src::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

nodejs-debuginfoRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

nodejs-debuginfoRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

nodejs-debugsourceRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

nodejs-debugsourceRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

nodejs-develRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

nodejs-develRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

nodejs-docsRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.noarch::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.noarch::nodejs:24RHSA-2026:35891

nodejs-docsRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.noarch::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.noarch::nodejs:24RHSA-2026:35891

nodejs-full-i18nRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

nodejs-full-i18nRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

nodejs-libsRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

nodejs-libsRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

nodejs-libs-debuginfoRed Hat / RHEL

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

nodejs-libs-debuginfoRocky

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.x86_64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.s390x::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.ppc64le::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el8.10.0+24481+7a71fac8.aarch64::nodejs:24RHSA-2026:39868

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.x86_64::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.ppc64le::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.s390x::nodejs:24RHSA-2026:35891

Fixed in:1:24.18.0-1.module+el9.8.0+24456+b244c3b4.aarch64::nodejs:24RHSA-2026:35891

nodejs-nodemonRocky

Fixed in:0:3.0.3-1.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:3.0.3-1.module+el8.10.0+24190+49a46c75.src::nodejs:24RHSA-2026:39868

Fixed in:0:3.0.3-3.module+el9.8.0+24355+35d95b59.src::nodejs:24RHSA-2026:35891

Fixed in:0:3.0.3-3.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

nodejs-nodemonRed Hat / RHEL

Fixed in:0:3.0.3-1.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:3.0.3-1.module+el8.10.0+24190+49a46c75.src::nodejs:24RHSA-2026:39868

Fixed in:0:3.0.3-3.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

Fixed in:0:3.0.3-3.module+el9.8.0+24355+35d95b59.src::nodejs:24RHSA-2026:35891

nodejs-packagingRed Hat / RHEL

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.src::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.src::nodejs:24RHSA-2026:35891

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

nodejs-packagingRocky

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.src::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.src::nodejs:24RHSA-2026:35891

nodejs-packaging-bundlerRed Hat / RHEL

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

nodejs-packaging-bundlerRocky

Fixed in:0:2021.06-6.module+el8.10.0+24190+49a46c75.noarch::nodejs:24RHSA-2026:39868

Fixed in:0:2021.06-6.module+el9.8.0+24355+35d95b59.noarch::nodejs:24RHSA-2026:35891

nodejs24Rocky

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24Red Hat / RHEL

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24-debuginfoRocky

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24-debuginfoRed Hat / RHEL

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24-debugsourceRocky

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24-debugsourceRed Hat / RHEL

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

nodejs24-develRed Hat / RHEL

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

Fixed in:1:24.18.0-1.el10_2RHSA-2026:35841

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Related Vulnerabilities

Other CWE-346 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-34291	High	8.8	93%	KEV	-
CVE-2009-1185	High	7.2	80%	-	Fix
CVE-2020-16952	High	8.6	71%	-	-
CVE-2023-29711	Critical	9.8	70%	-	-
CVE-2015-4495	High	8.8	69%	KEV	Fix
CVE-2024-23898	High	8.8	67%	-	Fix

Common questions

How do I fix CVE-2026-6734?

Published advisories record a fix for 45 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-6734 being actively exploited?

Not that we know of. CVE-2026-6734 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.39% is the estimated probability that it will be exploited in the next 30 days. That is higher than 31% of all scored CVEs.

How severe is CVE-2026-6734?

CVE-2026-6734 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-6734 affect?

Published advisories record a fix for node-undici (Debian), nodejs (Rocky), nodejs (Red Hat / RHEL), nodejs-debuginfo (Red Hat / RHEL), and 41 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-10.