libnetty-java: Netty is an asynchronous, event-driven network application framework
CVE-2025-67735 is fixed in 2 products on 1 platform, first by libnetty-java 1:4.1.7-4ubuntu0.1+esm7, released December 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the `io.netty.handler.codec.http.HttpRequestEncoder` has a CRLF injection with the request URI when constructing a request. This leads to request smuggling when `HttpRequestEncoder` is used without proper sanitization of the URI. Any application / framework using `HttpRequestEncoder` can be subject to be abused to perform request smuggling using CRLF injection. Versions 4.1.129.Final and 4.2.8.Final fix the issue.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libnetty-java · Ubuntu 18.04.6 LTS (bionic) | 1:4.1.7-4ubuntu0.1+esm7 | libnetty-java 1:4.1.7-4ubuntu0.1+esm7 | Dec 15, 2025 |
| libnetty-java · Ubuntu 20.04 LTS (focal) | 1:4.1.45-1ubuntu0.1~esm7 | libnetty-java 1:4.1.45-1ubuntu0.1~esm7 | Dec 15, 2025 |
| libnetty-java · Ubuntu 22.04.1 LTS (jammy) | 1:4.1.48-4+deb11u2ubuntu0.2+esm1 | libnetty-java 1:4.1.48-4+deb11u2ubuntu0.2+esm1 | Dec 15, 2025 |
| libnetty-java · Ubuntu 24.04.5 LTS (noble) | 1:4.1.48-9ubuntu0.2+esm1 | libnetty-java 1:4.1.48-9ubuntu0.2+esm1 | Dec 15, 2025 |
| netty · Debian 12.15 (bookworm) | 1:4.1.48-7+deb12u2 | DEBIAN-CVE-2025-67735 | Dec 16, 2025 |
| netty · Debian 13.5 (trixie) | 1:4.1.48-10+deb13u1 | DEBIAN-CVE-2025-67735 | Dec 16, 2025 |
| netty · Debian 14 | 1:4.1.48-16 | DEBIAN-CVE-2025-67735 | Dec 16, 2025 |
| netty · opensuse-leap 15.6 | 4.1.130-150200.4.40.1 | SUSE-SU-2025:4489-1 | Dec 19, 2025 |
| netty · sles 15.7 | 4.1.130-150200.4.40.1 | SUSE-SU-2025:4489-1 | Dec 19, 2025 |
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.