CVE-2026-50010 Netty is a network application framework for development of protocol servers and clients
Description
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers() and related paths wrap any user-supplied plain X509TrustManager in X509TrustManagerWrapper, which extends X509ExtendedTrustManager but implements the 3-arg checkServerTrusted(chain, authType, SSLEngine) by discarding the SSLEngine and calling the 2-arg delegate. Because the object now IS an X509ExtendedTrustManager, neither SunJSSE's internal AbstractTrustManagerWrapper nor Netty's own OpenSslX509TrustManagerWrapper will re-wrap it to add endpoint-identification. Consequently, even though Netty 4.2 sets endpointIdentificationAlgorithm="HTTPS" by default, a client built with `SslContextBuilder.forClient().trustManager(somePlainX509TrustManager)` performs no hostname verification at all. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| netty 4.2 | 4.2.0.Final → < 4.2.15.Final | 4.2.15.Final |
| netty 4.1 | earliest → < 4.1.135.Final | 4.1.135.Final |
| Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1 | Versions not published | |
| Red Hat Offline Knowledge Portal 1.2.6 | Versions not published | |
| Red Hat build of Quarkus 3.27.4.SP1 | Versions not published | |
| Red Hat build of Quarkus 3.33.2.SP1 | Versions not published | |
| Cryostat 4 | Versions not published | |
| OpenShift Serverless | Versions not published | |
| Red Hat AMQ Broker 7 | Versions not published |
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References
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
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