PatchTheCVEfastify\/http-proxy vulnerabilities and fixes
Recent CVEs affecting fastify\/http-proxy, with upgrade or downgrade steps. 2 tracked.
Also searched as: fastify\/http proxy.
fastify\/http-proxy has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-09-03. Highest priority: CVE-2026-33805 (score 50/100).
- CVE-2026-33805 HIGH 8.6 UPGRADE UPGRADE @fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Conne
- CVE-2026-85124 HIGH 7.5 UPGRADE @fastify/http-proxy versions before 11.6.2 do not validate proxied HTTP request paths for backslash based dot-
FAQ
How do I fix fastify\/http-proxy vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is fastify\/http-proxy being exploited right now?
None of the tracked fastify\/http-proxy CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which fastify\/http-proxy CVE should I patch first?
CVE-2026-33805 currently ranks highest (50/100): @fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Conne.