CVE-2026-33011

Nest is a framework for building scalable Node.js server-side applications. In versions 11.1.15 and below, a NestJS application using @nestjs/platform-fastify GET middleware can be bypassed because Fastify automatically redirects HEAD requests to the corresponding GET handlers if they exist. As a...

EUVD-2026-14431

fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections...

fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

GHSA-444R-CWP2-X5XF fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

@amedia/brick-mcp (>=0.0.0-vBRAND-20260313141110, <=1.0.3), @andesite-lab/andesite-core (>=1.60.2, <=1.62.0) +304 more potentially affected by CVE-2026-3635 via fastify (>=5.0.0-alpha.2, <=5.8.2)

fastify NPM version =5.0.0-alpha.2, =0.0.0-vBRAND-20260313141110, =1.60.2, =2.0.1, =1.1.1, =0.6.2, =0.1.1, =0.1.1, =0.6.0, =0.1.1, =0.0.35, =0.0.82, =0.0.1, =0.0.6, =0.1.68, =0.1.130 and more Source cves: CVE-2026-3635 Source advisory: OSV:GHSA-444R-CWP2-X5XF...

@amedia/brick-mcp (>=0.0.0-vBRAND-20260313141110, <=1.0.3), @andesite-lab/andesite-core (>=1.60.2, <=1.62.0) +304 more potentially affected by CVE-2026-3635 via fastify (>=5.0.0-alpha.2, <=5.8.2)

fastify NPM version =5.0.0-alpha.2, =0.0.0-vBRAND-20260313141110, =1.60.2, =2.0.1, =1.1.1, =0.6.2, =0.1.1, =0.1.1, =0.6.0, =0.1.1, =0.0.35, =0.0.82, =0.0.1, =0.0.6, =0.1.68, =0.1.130 and more Source cves: CVE-2026-3635 Source advisory: GHSA-444R-CWP2-X5XF...

CVE-2026-3635

A flaw was found in fastify. When the trustProxy option is configured with a restrictive trust function, such as a specific IP, a subnet, a hop count or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection,...

CVE-2026-3635

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

CVE-2026-3635

CVE-2026-3635 : In Fastify (affected: fastify

CVE-2026-3635

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

Use of Less Trusted Source

Overview fastify is an overhead web framework, for Node.js. Affected versions of this package are vulnerable to Use of Less Trusted Source in the request.protocol and request.host getters. An attacker can manipulate the perceived protocol and host by sending crafted X-Forwarded-Proto and...

@amedia/brick-mcp (>=0.0.0-vBRAND-20260313141110, <=1.0.3), @andesite-lab/andesite-core (>=1.60.2, <=1.62.0) +304 more potentially affected by CVE-2026-3635 via fastify (>=5.0.0-alpha.2, <=5.8.2)

fastify NPM version =5.0.0-alpha.2, =0.0.0-vBRAND-20260313141110, =1.60.2, =2.0.1, =1.1.1, =0.6.2, =0.1.1, =0.1.1, =0.6.0, =0.1.1, =0.0.35, =0.0.82, =0.0.1, =0.0.6, =0.1.68, =0.1.130 and more Source cves: CVE-2026-3635 Source advisory: SNYK:JS-FASTIFY-15762220...

03-api-solid (>=1.0.0, <=1.1.2), 0uth (>=1.0.5, <=1.2.1) +3831 more potentially affected by CVE-2026-3635 via fastify (>=0.5.0, <=5.8.2)

fastify NPM version =0.5.0, =1.0.0, =1.0.5, =1.0.0, =1.0.0, =0.0.0, =0.0.1, =1.0.3, =0.0.1, =0.1.66, =0.5.0, =1.3.0, =0.0.1, =0.0.1, =0.0.1, =0.0.1, =0.0.2-canary.2 and more Source cves: CVE-2026-3635 Source advisory: MEND:CVE-2026-3635...

CVE-2026-3635

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

CVE-2026-3635 Fastify request.protocol and request.host spoofable via X-Forwarded-Proto/Host from untrusted connections when trustProxy uses restrictive trust function

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

Improper Access Control

fastify-reply-from is vulnerable to Improper Access Control. The vulnerability is due to insufficient validation of forwarded URLs in reply.from, which allows an attacker to craft malicious URLs and access unauthorized routes...

Fastify security vulnerabilities

Fastify is an open-source web framework developed by Fastify. Versions of Fastify 5.8.2 and earlier contain security vulnerabilities. These vulnerabilities arise when the trustProxy is configured as a restrictive trust function, allowing request.protocol and request.host to read the...

PT-2026-27132

Name of the Vulnerable Software and Affected Versions fastify versions prior to 5.8.3 Description When trustProxy is configured with a restrictive trust function, such as a specific IP, a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Pro...

CVE-2026-3635: Use of Less Trusted Source

Summary When trustProxy is configured with a restrictive trust function e.g., a specific IP like trustProxy: '10.0.0.1', a subnet, a hop count, or a custom function, the request.protocol and request.host getters read X-Forwarded-Proto and X-Forwarded-Host headers from any connection — including...

CVE-2026-33011

Nest is a framework for building scalable Node.js server-side applications. In versions 11.1.15 and below, a NestJS application using @nestjs/platform-fastify GET middleware can be bypassed because Fastify automatically redirects HEAD requests to the corresponding GET handlers if they exist. As a...