CVE-2025-32442 — Fastify vulnerable to invalid content-type parsing, which could lead to validation bypass
Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies fo…
Published: 2025-04-18 · CVSS: 7.5 · CVSS 3.1
Fastify is a fast and low overhead web framework, for Node.js. In versions 5.0.0 to 5.3.0 as well as version 4.29.0, applications that specify different validation strategies for different content types have a possibility to bypass validation by providing a _slightly altered_ content type such as with different casing or altered whitespacing before `;`. This was patched in v5.3.1, but the initial patch did not cover all problems. This has been fully patched in v5.3.2 and v4.29.1. A workaround involves not specifying individual content types in the schema.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7