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CVE-2025-32442

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/18/2025

Last Modified8/22/2025

Sourcenvd

Honeypot Sightings0

Affected Products

fastify:fastify

Weaknesses (CWE)

CWE-1287

References

https://github.com/fastify/fastify/commit/436da4c06dfbbb8c24adee3a64de0c51e4f47418(security-advisories@github.com)

https://github.com/fastify/fastify/commit/f3d2bcb3963cd570a582e5d39aab01a9ae692fe4(security-advisories@github.com)

https://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwc(security-advisories@github.com)

https://hackerone.com/reports/3087928(security-advisories@github.com)

IOC Correlations

No correlations recorded

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