fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content-Type Header
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| fastify | fastify | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||||||
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| Fastify | Fastify |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-247c-9743-5963 | Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.456% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:fastify:fastify:*:*:*:*:*:node.js:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-1289 | |
| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Fastify
Fastify fastify |
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| Vendors & Products |
Fastify
Fastify fastify |
| Type | Values Removed | Values Added |
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| 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. | |
| Title | fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content-Type Header | |
| Weaknesses | CWE-1287 | |
| References |
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| Metrics |
cvssV3_1
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