GHSA-wf42-42fg-fg84

Source

https://github.com/advisories/GHSA-wf42-42fg-fg84

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wf42-42fg-fg84/GHSA-wf42-42fg-fg84.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-wf42-42fg-fg84

Aliases

CVE-2026-33011

Published

2026-03-17T18:38:38Z

Modified

2026-03-20T21:37:35.417540Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Nest Fastify HEAD Request Middleware Bypass

Details

Impact

In 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 result:

Middleware will be completely skipped.
The HTTP response won't include a body (since the response is truncated when redirecting a HEAD request to a GET handler).
The actual handler will still be executed.

Patches

Fixed in @nestjs/platform-fastify@11.1.16

Database specific

{
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-670"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-17T18:38:38Z",
    "nvd_published_at": "2026-03-20T05:16:15Z"
}

References

Affected packages

npm / @nestjs/platform-fastify

Package

Name: @nestjs/platform-fastify; View open source insights on deps.dev
Purl: pkg:npm/%40nestjs/platform-fastify

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

11.1.16

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wf42-42fg-fg84/GHSA-wf42-42fg-fg84.json"

last_known_affected_version_range

"<= 11.1.15"