Fastify · weakness class
Input Validation and Logic
17 CVEs
Out of date: the sync last ran 3 hours ago. Newer CVEs and scores may be missing from the map.
Every dot is a CVE in what this vendor ships; the named ones are the most at risk.
- likely to be exploited
- 1
Every one of the 17 is a mark on the map. Named now: 1 to 17, most at risk first.
- Denial of service in Fastify via Content-Type header
- Prefix escape
- Prefix escape
- fastify-websocket vulnerable to uncaught exception via crash on malformed packet
- Fastify's Content-Type header tab character allows body validation bypass
- Fastify vulnerable to invalid content-type parsing, which could lead to validation bypass
- fastify vulnerable to header validation bypass via incomplete schema case normalization
- fastify vulnerable to request validation bypass via skipped boolean false schemas
- @fastify/express vulnerable to middleware authentication bypass via URL normalization gaps (duplicate slashes and semicolons)
- fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content-Type Header
- @fastify/express vulnerable to middleware path doubling causing authentication bypass in child plugin scopes
- fastify vulnerable to request body replacement via an async validation result collision
- fastify vulnerable to Denial of Service via unhandled exception on HTTP/2 trailer responses
- Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
- fastify vulnerable to Denial of Service via uncaught exception on handlerTimeout with streaming responses
- fastify vulnerable to schema validation bypass via root primitive coercion mismatch
- fastify vulnerable to header validation bypass via case-sensitive propertyNames
exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-14. CVE List through 2026-11-14 · EPSS of 2026-11-13 · CISA KEV checked 2026-11-14. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.