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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-93491

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

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Status
Published
Published
Updated
Assigning organization
redhat

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Build of Apache Camel 3.33.3.SP2

Default version status: affected

  • 4.1.138.Final-redhat-00001 to < *unaffected

Red Hat Red Hat Build of Debezium 3.6

Default version status: unaffected

Red Hat Red Hat build of Quarkus 3.27.5.SP2

Default version status: unaffected

Red Hat Red Hat build of Quarkus 3.33.3.SP2

Default version status: unaffected

Red Hat Red Hat AMQ Broker 7

Default version status: affected

Red Hat Red Hat AMQ Clients

Default version status: affected

Red Hat Red Hat build of Apache Camel 4 for Quarkus 3

Default version status: affected

Red Hat Red Hat build of Apache Camel for Spring Boot 4

Default version status: affected

Red Hat Red Hat build of Apicurio Registry 3

Default version status: affected

Red Hat Red Hat Build of Keycloak

Default version status: affected

Red Hat Red Hat Data Grid 8

Default version status: affected

Red Hat Red Hat Fuse 7

Default version status: unknown

Red Hat Red Hat JBoss Enterprise Application Platform 7

Default version status: unknown

Red Hat Red Hat JBoss Enterprise Application Platform 8

Default version status: affected

Red Hat Red Hat Single Sign-On 7

Default version status: affected

References