Technology · Fastify
Fastify Middie vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in Fastify Middie: 0 in the last 7 days and 2 in the last 90 days, 5 of them critical and 0 exploited in the wild. The most recent, CVE-2026-112712, was published on 20 October 2026. 1 vulnerability in the last four weeks, up from none in the four before. 1 critical against 0.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 5
- Exploited in the wild
- 0
About Fastify Middie
Fastify middleware plugin that provides middleware support for the Fastify framework.
Latest Fastify Middie vulnerabilities
- CVE-2026-112712: @fastify/middie path-scoped middleware bypass via scope prefix mismatchcriticalCVSS 9.1
- CVE-2026-85184: @fastify/middie path-scoped middleware bypass via absolute-form requestcriticalCVSS 9.1EPSS 0.5%
- CVE-2026-14198: Fastify @fastify/middie authorization bypass via encoded slash in path parameterscriticalCVSS 9.1
- CVE-2026-33804: Fastify @fastify/middie middleware bypass via duplicate slasheshighCVSS 7.4EPSS 0.5%
- CVE-2026-6270: Fastify @fastify/middie authentication bypass in child plugin scopescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-2880: Fastify @fastify/middie auth bypass via improper path normalizationcriticalCVSS 9.1EPSS 0.5%
- CVE-2026-22031: Fastify @fastify/middie middleware path bypass via URL encodinghighCVSS 8.4EPSS 0.5%
Most severe Fastify Middie vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-6270: Fastify @fastify/middie authentication bypass in child plugin scopescriticalCVSS 9.1EPSS 0.6%
- CVE-2026-85184: @fastify/middie path-scoped middleware bypass via absolute-form requestcriticalCVSS 9.1EPSS 0.5%
- CVE-2026-2880: Fastify @fastify/middie auth bypass via improper path normalizationcriticalCVSS 9.1EPSS 0.5%
- CVE-2026-112712: @fastify/middie path-scoped middleware bypass via scope prefix mismatchcriticalCVSS 9.1
- CVE-2026-14198: Fastify @fastify/middie authorization bypass via encoded slash in path parameterscriticalCVSS 9.1
- CVE-2026-22031: Fastify @fastify/middie middleware path bypass via URL encodinghighCVSS 8.4EPSS 0.5%
- CVE-2026-33804: Fastify @fastify/middie middleware bypass via duplicate slasheshighCVSS 7.4EPSS 0.5%
Vulnerabilities per week
1 vulnerability in the last four weeks, up from none in the four before. 1 critical against 0. 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 | 1 | 1 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 1 | 1 | |
| 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 Middie vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/middie)<a href="https://junglewise.ai/threats/technologies/middie"><img src="https://junglewise.ai/threats/technologies/middie/badge.svg" alt="Fastify Middie 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/middie.json, and this page as text at https://junglewise.ai/threats/technologies/middie.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 Middie vulnerabilities", https://junglewise.ai/threats/technologies/middie, 9 November 2026.