EUVD-2026-98697Published

fastify vulnerable to header validation bypass via case-sensitive propertyNames

cve-program · CVE-2026-107832

Published

fastify

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "fastify",
                    "product": "fastify",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "versionType": "semver",
                            "status": "affected",
                            "version": "5.12.2",
                            "lessThan": "5.12.6"
                        },
                        {
                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "5.12.6"
                        }
                    ],
                    "packageURL": "pkg:npm/fastify"
                }

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

euvd · EUVD-2026-98697

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: Oct 13, 2026, 1:23:24 PM

dateUpdated: Oct 15, 2026, 7:14:58 PM

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-2026-107832

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: Awaiting Analysis

Weakness classifications: CWE-178

Original publisher date fields

published: 2026-10-13T14:17:19.167

lastModified: 2026-10-15T20:38:04.303

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

osv · GHSA-389g-gv7q-r4x8

Published

fastify

npm

SEMVER · introduced 5.12.2 → fixed 5.12.6

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