eap8-eap-product-conf-parent: Netty is an asynchronous, event-driven network application framework
CVE-2026-42587 is fixed in 6 products on 1 platform, first by SUSE-SU-2026:2308-1, released June 9, 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, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2 connections. 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 |
| 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 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.