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Vulnrichment
Vulnrichment
added 2026/04/15 12:14 a.m.7 views

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

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...

7.5CVSS5.8AI score0.00408EPSS
SaveExploits0References2
OSV
OSV
added 2026/04/15 12:14 a.m.9 views

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

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...

7.5CVSS7.1AI score0.00713EPSS
SaveExploits1References7
ATTACKERKB
ATTACKERKB
added 2026/04/15 12:14 a.m.12 views

CVE-2026-33806

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...

7.5CVSS7.1AI score0.00713EPSS
SaveExploits1References3Affected Software1
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