CVE-2026-42583

HIGH

7.5

Description

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength (up to 32 MB per block) before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if compressedLength == 1 - to force that allocation. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie5/13/2026

Derniere modification5/13/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-400CWE-770

References

https://github.com/netty/netty/security/advisories/GHSA-mj4r-2hfc-f8p6(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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