eap8-eap-product-conf-parent: Netty is an asynchronous, event-driven network application framework
CVE-2026-42584 is fixed in 9 products on 1 platform, first by libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2, released May 13, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| eap8-eap-product-conf-parent · RHEL 10 | 801.7.1-1.GA_redhat_00001.1.el10eap | RHSA-2026:49700 | Jun 12, 2026 |
| eap8-netty · RHEL 10 | 4.1.135-1.Final_redhat_00001.1.el10eap | RHSA-2026:49700 | Jun 12, 2026 |
| eap8-netty-transport-native-epoll · RHEL 10 | 4.1.135-1.Final_redhat_00001.1.el10eap | RHSA-2026:49700 | Jun 12, 2026 |
| eap8-wildfly · RHEL 10 | 8.1.7.1-1.GA_redhat_00004.1.el10eap | RHSA-2026:49700 | Jun 12, 2026 |
| libnetty-buffer-java · Ubuntu 26.04.1 LTS (resolute) | 1:4.1.48-16ubuntu0.1~esm2 | libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2 | May 13, 2026 |
| libnetty-common-java · Ubuntu 26.04.1 LTS (resolute) | 1:4.1.48-16ubuntu0.1~esm2 | libnetty-common-java 1:4.1.48-16ubuntu0.1~esm2 | May 13, 2026 |
| libnetty-java · Ubuntu 18.04.6 LTS (bionic) | 1:4.1.7-4ubuntu0.1+esm6 | libnetty-java 1:4.1.7-4ubuntu0.1+esm6 | May 13, 2026 |
| libnetty-java · Ubuntu 20.04 LTS (focal) | 1:4.1.45-1ubuntu0.1~esm6 | libnetty-java 1:4.1.45-1ubuntu0.1~esm6 | May 13, 2026 |
| libnetty-java · Ubuntu 22.04.1 LTS (jammy) | 1:4.1.48-4+deb11u2ubuntu0.1+esm3 | libnetty-java 1:4.1.48-4+deb11u2ubuntu0.1+esm3 | May 13, 2026 |
| libnetty-java · Ubuntu 24.04.5 LTS (noble) | 1:4.1.48-9ubuntu0.1+esm3 | libnetty-java 1:4.1.48-9ubuntu0.1+esm3 | May 13, 2026 |
| libnetty-java · Ubuntu 26.04.1 LTS (resolute) | 1:4.1.48-16ubuntu0.1~esm2 | libnetty-java 1:4.1.48-16ubuntu0.1~esm2 | May 13, 2026 |
| netty · sles 15.7 | 4.1.133-150200.4.46.1 | SUSE-SU-2026:2308-1 | Jun 9, 2026 |
| netty-tcnative · sles 15.6 | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 | Jun 9, 2026 |
| netty-tcnative · sles 15.7 | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 | Jun 9, 2026 |
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