# CVE-2026-33011

## Summary

- **CVE ID:** CVE-2026-33011
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-670
- **Published:** Mar 20, 2026
- **Last Modified:** Mar 20, 2026

## Description

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 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), and the actual handler will still be executed. This issue is fixed in version 11.1.16.

## Affected Products

- nestjs — nest (< 11.1.16)

## References

- [CNA](https://github.com/nestjs/nest/security/advisories/GHSA-wf42-42fg-fg84)
- [CNA](https://github.com/nestjs/nest/commit/cbdf737cd6e7cefa52d05ecea2ae4af95c464614)
- [CNA](https://github.com/nestjs/nest/releases/tag/v11.1.17)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 27.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._