CVE-2026-50010: fallo de gravedad alta en netty
Netty's wrapping plain trust manager silently disables hostname verification
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Productos afectados
netty · nettyCVEs relacionadas — netty
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Referencias
https://access.redhat.com/errata/RHSA-2026:26017https://access.redhat.com/errata/RHSA-2026:26018https://access.redhat.com/errata/RHSA-2026:26586https://access.redhat.com/errata/RHSA-2026:28573https://access.redhat.com/errata/RHSA-2026:34608https://access.redhat.com/errata/RHSA-2026:37390https://access.redhat.com/errata/RHSA-2026:41951https://access.redhat.com/errata/RHSA-2026:48151https://access.redhat.com/errata/RHSA-2026:49700https://access.redhat.com/errata/RHSA-2026:49701https://access.redhat.com/errata/RHSA-2026:50085https://access.redhat.com/errata/RHSA-2026:53644