http-proxy-middleware vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-55603Highhttp-proxy-middleware: http-proxy-middleware: multipart/form-data field injection via unescaped CRLF in `fixRequestBody`CVE-2026-55602Mediumhttp-proxy-middleware: http-proxy-middleware `router` host+path substring matching allows Host-header-driven backend…CVE-2025-32996Mediumhttp-proxy-middleware: http-proxy-middleware can call writeBody twice because "else if" is not used CVE-2025-32997Mediumhttp-proxy-middleware: http-proxy-middleware allows fixRequestBody to proceed even if bodyParser has failed CVE-2024-21536Highhttp-proxy-middleware: Denial of service in http-proxy-middleware

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