CVE-2025-32442

Description

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.

Weakness classification

• security-advisories@github.com: CWE-1287

Primary references

• security-advisories@github.com — Patch
• security-advisories@github.com — Patch
• security-advisories@github.com — Exploit, Third Party Advisory
• security-advisories@github.com — Permissions Required