Technology · npm
fastify (npm) vulnerabilities
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Junglewise Threat Intelligence has tracked 17 vulnerabilities in fastify (npm): 0 in the last 7 days and 8 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-107832, was published on 13 October 2026. 1 vulnerability in the last four weeks, level on the four before (1).
- Last 7 days
- 0
- Last 90 days
- 8
- Critical, all time
- 0
- Exploited in the wild
- 0
About fastify (npm)
Fast and low overhead web framework for Node.js.
Latest fastify (npm) vulnerabilities
- CVE-2026-107832: fastify is vulnerable to header validation bypass via case-sensitive propertyNameslowCVSS 3.7EPSS 0.3%
- CVE-2026-92081: Fastify denial of service via unhandled exception on HTTP/2 trailer responsesmediumCVSS 5.9EPSS 0.4%
- CVE-2026-84428: Fastify header validation bypass via incomplete schema case normalizationhighCVSS 7.5EPSS 0.5%
- CVE-2026-84504: Fastify request body replacement via async validation result collisionhighCVSS 8.1EPSS 0.4%
- CVE-2026-84469: Fastify request validation bypass via skipped boolean false schemashighCVSS 7.5EPSS 0.5%
- CVE-2026-76169: Fastify authentication bypass via malformed URLs in encapsulated handlershighCVSS 7.5EPSS 0.5%
- 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-2026-84504: Fastify request body replacement via async validation result collisionhighCVSS 8.1EPSS 0.4%
- CVE-2026-25223: Fastify validation bypass via Content-Type header manipulationhighCVSS 7.5EPSS 0.8%
- CVE-2026-76169: Fastify authentication bypass via malformed URLs in encapsulated handlershighCVSS 7.5EPSS 0.5%
- CVE-2026-84428: Fastify header validation bypass via incomplete schema case normalizationhighCVSS 7.5EPSS 0.5%
- CVE-2026-84469: Fastify request validation bypass via skipped boolean false schemashighCVSS 7.5EPSS 0.5%
- 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-2026-92081: Fastify denial of service via unhandled exception on HTTP/2 trailer responsesmediumCVSS 5.9EPSS 0.4%
- CVE-2026-18504: Fastify schema validation bypass via root primitive coercion mismatchmediumCVSS 5.4EPSS 0.3%
- CVE-2026-107832: fastify is vulnerable to header validation bypass via case-sensitive propertyNameslowCVSS 3.7EPSS 0.3%
Vulnerabilities per week
1 vulnerability in the last four weeks, level on the four before (1). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 6 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 1 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many fastify (npm) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/fastify)<a href="https://junglewise.ai/threats/technologies/fastify"><img src="https://junglewise.ai/threats/technologies/fastify/badge.svg" alt="fastify (npm) vulnerabilities" /></a>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, and this page as text at https://junglewise.ai/threats/technologies/fastify.md, 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, 13 November 2026.