Description

Impact: Fastify applications using schema.body.content for per-content-type body validation can have validation bypassed entirely by prepending a space to the Content-Type header. The body is still parsed correctly but schema validation is skipped. This is a regression introduced in fastify >= 5.3.2 by the fix for CVE-2025-32442 Patches: Upgrade to fastify v5.8.5 or later. Workarounds: None. Upgrade to the patched version.

INFO

Published Date :

2026-04-15T00:14:02.376Z

Last Modified :

2026-04-15T00:14:02.376Z

Source :

openjs
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33806 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33806.

URL Resource
https://cna.openjsf.org/security-advisories.html cve-icon
https://github.com/fastify/fastify/security/advisories/GHSA-mg2h-6x62-wpwc cve-icon
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