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Product · io.netty

netty-codec-http

4 known vulnerabilities.

netty-codec-http at a glance

Last 12 months
4
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 4 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • High 7.5
    CVE-2026-42587

    Netty: HttpContentDecompressor maxAllocation bypass via Content-Encoding: br/zstd/snappy enables decompression bomb DoS

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is c…

    netty io.netty netty netty-codec-http Debian Maven
  • Medium 6.5
    CVE-2026-42585

    Netty: HTTP Request Smuggling due to malformed Transfer-Encoding

    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.Fi…

    netty io.netty netty netty-codec-http Debian Ubuntu Maven
  • High 7.3
    CVE-2026-42584

    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 G…

    netty io.netty netty netty-codec-http Debian Ubuntu Maven
  • Medium 6.5
    CVE-2026-42580

    Netty: HTTP Request Smuggling due to incorrect chunk size parsing

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

    netty io.netty netty netty-codec-http Debian Ubuntu Maven