Report: CVE-2026-33806 - fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content

Report: CVE-2026-33806 - fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content

CVE ID :CVE-2026-33806 Published : 15 Apr 2026, 12:14 a.m. | 2 hours, 8 minutes ago 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. Severity: 7.5 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
HIGH