CVE-2026-6270

CRITICAL

9.1

Beschreibung

@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the parent middleware. This allows unauthenticated requests to reach routes defined in child plugin scopes, bypassing authentication and authorization checks. Upgrade to @fastify/middie 9.3.2 to fix this issue. There are no workarounds.

CVE Details

CVSS v3.1 Bewertung9.1

SchweregradCRITICAL

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht4/16/2026

Zuletzt geandert4/17/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-436

Referenzen

https://cna.openjsf.org/security-advisories.html(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/fastify/fastify-express/security/advisories/GHSA-hrwm-hgmj-7p9c(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/fastify/middie/security/advisories/GHSA-72c6-fx6q-fr5w(ce714d77-add3-4f53-aff5-83d477b104bb)

IOC Korrelationen

Keine Korrelationen erfasst

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