CVE-2026-93565: high-severity vulnerability in Red Hat AMQ Broker 7
Io.netty/netty-codec-http: netty rtspdecoder method-token smuggling via trailing control byte
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.8%
A flaw was found in Netty RtspDecoder. The `RtspMethods.valueOf()` function incorrectly strips trailing control bytes from method tokens in Real-Time Streaming Protocol (RTSP) requests. A remote attacker can exploit this by sending a specially crafted RTSP request, leading to method-token smuggling. This vulnerability allows an attacker to bypass method-based access controls and can also be used to launder malicious requests through Netty-based RTSP proxies, making them appear legitimate to backend systems.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Red Hat · Red Hat AMQ Broker 7Red Hat · Red Hat AMQ ClientsRed Hat · Red Hat Build of Apache Camel 3.33.3.SP2Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3Red Hat · Red Hat build of Apache Camel for Spring Boot 4Red Hat · Red Hat build of Apicurio Registry 3Red Hat · Red Hat Build of Debezium 3.6Red Hat · Red Hat Build of KeycloakRed Hat · Red Hat build of Quarkus 3.27.5.SP2Red Hat · Red Hat build of Quarkus 3.33.3.SP2Red Hat · Red Hat Data Grid 8Red Hat · Red Hat Fuse 7Red Hat · Red Hat JBoss Enterprise Application Platform 7Red Hat · Red Hat JBoss Enterprise Application Platform 8Red Hat · Red Hat Single Sign-On 7Related CVEs — Red Hat AMQ Broker 7
In the same product, most dangerous first.
CVE-2026-93567HIGHIo.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authorityEPSS 2.6%CVE-2026-93569HIGHIo.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authorityEPSS 2.2%CVE-2024-1023MEDIUMIo.vertx/vertx-core: memory leak due to the use of netty fastthreadlocal data structures in vertxEPSS 1.7%CVE-2024-1132HIGHKeycloak: path transversal in redirection validationEPSS 1.6%CVE-2026-93574MEDIUMIo.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsingEPSS 1.4%CVE-2026-93558HIGHIo.netty/netty-codec-http: netty: unbounded per-connection queue growth in websocketserverextensionhandler leads to denial of serviceEPSS 1.1%
References
https://access.redhat.com/errata/RHSA-2026:69440https://access.redhat.com/errata/RHSA-2026:69470https://access.redhat.com/errata/RHSA-2026:70257https://access.redhat.com/errata/RHSA-2026:83612https://access.redhat.com/security/cve/CVE-2026-93565https://bugzilla.redhat.com/show_bug.cgi?id=2536952