# @fastify/http-proxy (npm) vulnerabilities

1 known vulnerability (1 critical), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 11.6.6 (Nov 2, 2026): no advisory affects it
- Newest unaffected release: 11.6.6 (Nov 2, 2026), the latest release
- Weekly downloads: 560.3K
- Dependents: 56
- Releases: 45 since 7.0.0 (Apr 27, 2022)
- Registry: https://www.npmjs.com/package/@fastify/http-proxy
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-33805: 7.0.0 to 11.4.3 (11.4.4 is outside it)

## Advisories (1)

### [CVE-2026-33805](https://cve.now/CVE-2026-33805): @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

- Severity: Critical 9.0
- Published: Apr 15, 2026
- Affected: fixed in 11.4.4.
- Fixed in 11.4.4 (released Apr 15, 2026, the day of disclosure).
- The latest release, 11.6.6, is not affected.
- 29% of @fastify/http-proxy downloads last week were affected versions (182.7K).

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