Technology · npm
fastify (npm) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 11 vulnerabilities in fastify (npm): 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-16732, was published on 2 September 2026.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 0
- Exploited in the wild
- 0
About fastify (npm)
A web framework for Node.js focused on low overhead and efficient plugin architecture.
Latest fastify (npm) vulnerabilities
- CVE-2026-16732: Fastify X-Forwarded spoofing in trustProxy hop-countmediumCVSS 6.1EPSS 0.2%
- CVE-2026-18504: Fastify schema validation bypass via root primitive coercion mismatchmediumCVSS 5.4EPSS 0.3%
- CVE-2026-33806: Fastify schema validation bypass via malformed Content-Type headerhighCVSS 7.5EPSS 0.4%
- CVE-2026-3635: Fastify request.protocol and request.host spoofing via X-Forwarded headerslowCVSS 3.1EPSS 0.2%
- CVE-2026-3419: Fastify malformed Content-Type header validation bypasslowCVSS 3.1EPSS 0.5%
- CVE-2026-25223: Fastify validation bypass via Content-Type header manipulationhighCVSS 7.5EPSS 0.8%
- CVE-2026-25224: Fastify denial of service via unbounded memory allocation in sendWebStreamlowCVSS 3.1EPSS 0.5%
- CVE-2025-32442: Fastify vulnerable to invalid content-type parsing, which could lead to validation bypasslowCVSS 3.1EPSS 0.7%
- CVE-2022-39288: Fastify denial of service via malicious Content-TypelowCVSS 3.1EPSS 59.2%
- CVE-2020-8192: Fastify denial of service via allErrors schema validation optioninfoCVSS 5.3EPSS 1.2%
- CVE-2018-3711: Fastify denial of service with large JSON payloadslowCVSS 3.1EPSS 1.8%
Most severe fastify (npm) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-25223: Fastify validation bypass via Content-Type header manipulationhighCVSS 7.5EPSS 0.8%
- CVE-2026-33806: Fastify schema validation bypass via malformed Content-Type headerhighCVSS 7.5EPSS 0.4%
- CVE-2026-16732: Fastify X-Forwarded spoofing in trustProxy hop-countmediumCVSS 6.1EPSS 0.2%
- CVE-2026-18504: Fastify schema validation bypass via root primitive coercion mismatchmediumCVSS 5.4EPSS 0.3%
- CVE-2022-39288: Fastify denial of service via malicious Content-TypelowCVSS 3.1EPSS 59.2%
- CVE-2018-3711: Fastify denial of service with large JSON payloadslowCVSS 3.1EPSS 1.8%
- CVE-2025-32442: Fastify vulnerable to invalid content-type parsing, which could lead to validation bypasslowCVSS 3.1EPSS 0.7%
- CVE-2026-25224: Fastify denial of service via unbounded memory allocation in sendWebStreamlowCVSS 3.1EPSS 0.5%
- CVE-2026-3419: Fastify malformed Content-Type header validation bypasslowCVSS 3.1EPSS 0.5%
- CVE-2026-3635: Fastify request.protocol and request.host spoofing via X-Forwarded headerslowCVSS 3.1EPSS 0.2%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 2 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/fastify.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "fastify (npm) vulnerabilities", https://junglewise.ai/threats/technologies/fastify, 26 September 2026.