Fastify

A new vulnerability, EUVD-2026-70998, has been recorded for Fastify, the popular Node.js web framework. The flaw, rated 7.5 out of 10 on CVSS v3.1, allows a header validation bypass caused by incomplete schema case normalization. The entry in the European vulnerability database was updated on 30 September 2026. Security teams using Fastify are expected to review the advisory and check whether their deployments are affected.

A medium-high severity vulnerability, EUVD-2026-70989, has been catalogued in Fastify, the popular Node.js web framework. Rated 7.5 under CVSS v3.1, the flaw allows request validation bypass when boolean false schemas are skipped, potentially letting malformed requests through unchecked. The advisory was updated on 30 September 2026, and security teams using Fastify are being urged to review their validation logic and apply patches.

A newly catalogued vulnerability, EUVD-2026-70988, affects the Fastify web framework, rated 7.5 out of 10 on the CVSS v3.1 scale. The flaw allows authentication bypass when malformed URLs reach encapsulated not-found handlers, meaning requests intended to be blocked could slip through route protections. Fastify is a widely used Node.js framework, so developers running exposed services are being urged to review the advisory and update to a patched version.