GHSA-r53p-7pc4-xj5rPublished

undici vulnerable to downstream response splitting via retry interceptor

cve-program · CVE-2026-18540

Published

undici

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "undici",
                    "product": "undici",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "versionType": "semver",
                            "status": "affected",
                            "version": "0",
                            "lessThan": "6.28.1"
                        },
                        {
                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "6.28.1"
                        },
                        {
                            "versionType": "semver",
                            "status": "affected",
                            "version": "7.0.0",
                            "lessThan": "7.29.1"
                        },
                        {
                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "7.29.1"
                        },
                        {
                            "versionType": "semver",
                            "status": "affected",
                            "version": "8.0.0",
                            "lessThan": "8.10.2"
                        },
                        {
                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "8.10.2"
                        }
                    ],
                    "packageURL": "pkg:npm/undici"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-71661

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Sep 4, 2026, 5:15:50 PM

dateUpdated: Sep 4, 2026, 5:50:13 PM

5 related source bulletins · separate from aliases

RHSA-2026:71017: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-18540 · CVE-2026-19534 · CVE-2026-85024

RHSA-2026:66008: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-14199 · CVE-2026-18149 · CVE-2026-18540 · CVE-2026-19197 · CVE-2026-19534 · CVE-2026-28378 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014

WID-SEC-W-2026-3596: IBM App Connect Enterprise: Mehrere Schwachstellen

CVE-2022-35948 · CVE-2026-13149 · CVE-2026-14257 · CVE-2026-15157 · CVE-2026-1527 · CVE-2026-16728 · CVE-2026-16729 · CVE-2026-18149 · CVE-2026-18540 · CVE-2026-19534 · CVE-2026-2391 · CVE-2026-45820 · CVE-2026-54272 · CVE-2026-63670 · CVE-2026-67213 · CVE-2026-67214 · CVE-2026-69152 · CVE-2026-69192 · CVE-2026-69198 · CVE-2026-73566 · CVE-2026-73646 · CVE-2026-77037 · CVE-2026-77063 · CVE-2026-77078 · CVE-2026-82333 · CVE-2026-82417 · CVE-2026-82562 · CVE-2026-83605 · CVE-2026-83606 · CVE-2026-83607 · CVE-2026-83608 · CVE-2026-83609 · CVE-2026-83610 · CVE-2026-83611 · CVE-2026-83612 · CVE-2026-83613 · CVE-2026-83614 · CVE-2026-83615 · CVE-2026-83616 · CVE-2026-83618 · CVE-2026-83619 · CVE-2026-84292 · CVE-2026-84371 · CVE-2026-84375 · CVE-2026-84890 · CVE-2026-84933 · CVE-2026-84947 · CVE-2026-84961 · CVE-2026-85008 · CVE-2026-85014 · CVE-2026-85024 · CVE-2026-85152

RHSA-2026:66605: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-18540 · CVE-2026-19534 · CVE-2026-84961 · CVE-2026-85024

msrc_CVE-2026-18540: undici vulnerable to downstream response splitting via retry interceptor

CVE-2026-18540

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-18540

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-444

Original publisher date fields

published: 2026-09-04T18:17:50.020

lastModified: 2026-09-16T20:41:17.627

1 source CPE criteria · context only

cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-r53p-7pc4-xj5r

Published

undici

npm

SEMVER · introduced 0 → fixed 6.28.1

undici

npm

SEMVER · introduced 7.0.0 → fixed 7.29.1

undici

npm

SEMVER · introduced 8.0.0 → fixed 8.10.2

Original source record · Cite this exact observation · Complete original publisher JSON