GHSA-64mm-vxmg-q3vj
NoneCVSS
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EPSS
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Published
Jun 18, 2026
CISA due date
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The record
http-proxy-middleware `router` host+path substring matching allows Host-header-driven backend routing bypass
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | http-proxy-middleware | 0.16.0 | 3.0.6 |
| npm | http-proxy-middleware | 4.0.0 | 4.1.0 |
Related vulnerabilities
- CVE-2026-55602 http-proxy-middleware is node.js http-proxy middleware. Same vulnerability
- CVE-2026-55603 http-proxy-middleware is node.js http-proxy middleware. Also affects http-proxy-middleware
- GHSA-gcq2-9pq2-cxqm http-proxy-middleware: multipart/form-data field injection via unescaped CRLF in… Also affects http-proxy-middleware
- CVE-2025-32996 http-proxy-middleware can call writeBody twice because "else if" is not used Also affects http-proxy-middleware
- CVE-2025-32997 http-proxy-middleware allows fixRequestBody to proceed even if bodyParser has failed Also affects http-proxy-middleware
- CVE-2024-21536 Versions of the package http-proxy-middleware before 2.0.7, from 3.0.0 and before 3.0.3… Also affects http-proxy-middleware
- CVE-2026-84376 Astro is a web framework for content-driven websites. CWE-187
- CVE-2026-62750 Partial string comparison in Windows HTTP Protocol Stack allows an unauthorized attacker… CWE-187