# CVE-2026-50010: Netty's wrapping plain trust manager silently disables hostname verification

> CVE-2026-50010: Netty's wrapping plain trust manager silently disables hostname verification. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-50010
Last updated: 2026-09-18T13:18:31Z

- Published: 2026-06-12 14:50 UTC · Updated: 2026-09-18 13:18 UTC · Assigner: GitHub\_M
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS: 0.49%, 42th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-347

## 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 vendors and products

- netty: netty
- Red Hat: Red Hat AMQ Broker 7.13.6
- Red Hat: Red Hat AMQ Broker 7.14.1
- Red Hat: Red Hat AMQ Clients
- Red Hat: Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1
- Red Hat: Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16
- Red Hat: Red Hat build of Apache Camel 4 for Quarkus 3
- Red Hat: Red Hat build of Apache Camel - HawtIO 4
- Red Hat: Red Hat build of Apicurio Registry 3
- Red Hat: Red Hat build of Debezium 3
- Red Hat: Red Hat Build of Keycloak
- Red Hat: Red Hat Data Grid 8.6.2
- Red Hat: Red Hat Enterprise Linux AI (RHEL AI) 3
- Red Hat: Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
- Red Hat: Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8
- Red Hat: Red Hat JBoss Enterprise Application Platform 8.1.7.GA
- Red Hat: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
- Red Hat: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
- Red Hat: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
- Red Hat: Streams for Apache Kafka 2.9.4
- Red Hat: streams for Apache Kafka 3

## Tracked companies

- [Bitbucket](https://rewindex.com/company/bitbucket.md)
- [Confluence](https://rewindex.com/company/confluence.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-50010)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-50010)
- [https://github.com/netty/netty/releases/tag/netty-4.1.135.Final](https://github.com/netty/netty/releases/tag/netty-4.1.135.Final)
- [https://github.com/netty/netty/releases/tag/netty-4.2.15.Final](https://github.com/netty/netty/releases/tag/netty-4.2.15.Final)
- [https://github.com/netty/netty/security/advisories/GHSA-c653-97m9-rcg9](https://github.com/netty/netty/security/advisories/GHSA-c653-97m9-rcg9)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-50010 · Markdown: https://rewindex.com/cve/CVE-2026-50010.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-50010 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:50.690Z