CVE-2019-20445: Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)

January 29, 2020 (updated May 14, 2024)

HttpObjectDecoder.java in Netty allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.

References

github.com/netty/netty/issues/9861
nvd.nist.gov/vuln/detail/CVE-2019-20445

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