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 4.9.0, 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 v4.9.1. A workaround involves not specifying individual content types in the schema.

Reserved 2025-04-08 | Published 2025-04-18 | Updated 2025-04-28 | Assigner GitHub_M

Problem types

CWE-1287: Improper Validation of Specified Type of Input

Product status

>= 5.0.0, < 5.3.2
affected

= 4.9.0
affected

References

github.com/...astify/security/advisories/GHSA-mg2h-6x62-wpwc

github.com/...ommit/436da4c06dfbbb8c24adee3a64de0c51e4f47418

github.com/...ommit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4

hackerone.com/reports/3087928

cve.org (CVE-2025-32442)

nvd.nist.gov (CVE-2025-32442)

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