요약
- CVE-2026-50010은(는) io.netty:netty-handler, netty (netty)에 영향을 주는 높음 (CVSS 7.5) 취약점입니다.
- 향후 30일 내 악용 확률(EPSS): 0.49%, 전체 취약점의 42.2%보다 높음.
- 조치: 4.2.15.Final, 4.1.135.Final, 4.2.15, 4.1.135 이상으로 업데이트하세요.
| Package | Affected versions | Patched versions |
|---|
| io.netty:netty-handler Maven | ≥ 4.2.0.Final, < 4.2.15.Final< 4.1.135.Final
| 4.2.15.Final4.1.135.Final
|
| netty | ≥ 4.2.0, < 4.2.15< 4.1.135
| 4.2.154.1.135
|
Description
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.
NVD 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.
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