CVE-2026-50560: Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature

June 15, 2026

Netty HTTP/2 max header size handling produces attack similar to HTTP/2 Rapid Reset.

References

github.com/advisories/GHSA-563q-j3cm-6jxm
github.com/netty/netty/releases/tag/netty-4.1.135.Final
github.com/netty/netty/releases/tag/netty-4.2.15.Final
github.com/netty/netty/security/advisories/GHSA-563q-j3cm-6jxm
nvd.nist.gov/vuln/detail/CVE-2026-50560
www.rfc-editor.org/rfc/rfc9113.html

Code Behaviors & Features

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