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CVE-2026-42584

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Netty: HttpClientCodec response desynchronization

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpClientCodec pairs each inbound response with an outbound request by queue.poll() once per response, including for 1xx. If the client pipelines GET then HEAD and the server sends 103, then 200 with GET body, then 200 for HEAD, the queue pairs HEAD with the first 200. The HEAD rule then skips reading that message’s body, so the GET entity bytes stay on the stream and the following 200 is parsed from the wrong offset. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

netty

Vendor
netty
Product
netty
Platforms
Unknown
Default status
Unknown
netty · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
>= 4.2.0.Alpha1, < 4.2.13.FinalaffectedUnavailableUnavailableUnavailableNone listed
< 4.1.133.FinalaffectedUnavailableUnavailableUnavailableNone listed

netty-codec-http

Vendor
io.netty
Product
netty-codec-http
Platforms
Unknown
Default status
Unknown
netty-codec-http · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
>= 4.2.0.Alpha1, < 4.2.13.FinalaffectedUnavailableUnavailableUnavailableNone listed
< 4.1.133.FinalaffectedUnavailableUnavailableUnavailableNone listed