CVE-2026-42584: Netty has HttpClientCodec response desynchronization

May 7, 2026

If HttpClientCodec is configured, there are use cases when a response body from one request, can be parsed as another’s.

References

github.com/advisories/GHSA-57rv-r2g8-2cj3
github.com/netty/netty
github.com/netty/netty/security/advisories/GHSA-57rv-r2g8-2cj3
nvd.nist.gov/vuln/detail/CVE-2026-42584

Code Behaviors & Features

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