CVE-2026-55831

Description

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty's SPDY SETTINGS decoder accepts a peer-declared SETTINGS entry count up to the 24-bit frame-length limit and materializes every unique setting ID in `DefaultSpdySettingsFrame`, allowing a remote SPDY/3.1 peer to send a syntactically valid roughly 2 MiB SETTINGS frame that creates 262144 map entries and amplifies network input into heap growth and ordered-map insertion work. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

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Produits concernés

• netty
• Netty netty

Scores CVSS

Faiblesses (CWE)

• CWE-400
• CWE-770

Références

• https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b Patch
• https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 Patch
• https://github.com/netty/netty/releases/tag/netty-4.1.136.Final Release Notes
• https://github.com/netty/netty/releases/tag/netty-4.2.16.Final Release Notes
• https://github.com/netty/netty/security/advisories/GHSA-6jqx-86gh-f27w ExploitVendor Advisory
• https://github.com/netty/netty/security/advisories/GHSA-6jqx-86gh-f27w ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories