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Medium severity6.5GHSA Advisory· Published May 13, 2026· Updated May 18, 2026

CVE-2026-42585

CVE-2026-42585

Description

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty incorrectly parses malformed Transfer-Encoding, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
io.netty:netty-codec-httpMaven
>= 4.2.0.Alpha1, < 4.2.13.Final4.2.13.Final
io.netty:netty-codec-httpMaven
< 4.1.133.Final4.1.133.Final

Affected products

252

Patches

Vulnerability mechanics

References

4

News mentions

0

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