CVE-2026-93491highCWE-770

CVE-2026-93491: high-severity vulnerability in Red Hat AMQ Broker 7

Io.netty/netty-codec-http: netty: denial of service via unbounded httpservercodec http/1.1 pipeline queue

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.7%
A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 7
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