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CVE-2026-93564

Io.netty/netty-codec-haproxy: netty: haproxy proxy-v2 nested-tlv grandchild bytebuf reference-count leak (incomplete fix of pr #16881) PUBLISHED

Description (CNA)

A flaw was found in Netty. A reference-count leak in the HAProxy PROXY-v2 message decoder allows a remote, unauthenticated attacker to send specially crafted PROXY-protocol v2 headers. This can lead to memory exhaustion, resulting in a Denial of Service (DoS) for the affected system.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Build of Apache Camel 3.33.3.SP2unaffected 4.1.138.Final-redhat-00001 before *
Red Hat / Red Hat Build of Debezium 3.6unaffected
Red Hat / Red Hat build of Quarkus 3.27.5.SP2unaffected
Red Hat / Red Hat build of Quarkus 3.33.3.SP2unaffected
Red Hat / Red Hat AMQ Broker 7affected
Red Hat / Red Hat build of Apache Camel 4 for Quarkus 3affected
Red Hat / Red Hat build of Apache Camel for Spring Boot 4affected
Red Hat / Red Hat build of Apicurio Registry 3affected
Red Hat / Red Hat Build of Keycloakaffected
Red Hat / Red Hat Fuse 7affected
Red Hat / Red Hat JBoss Enterprise Application Platform 7affected
Red Hat / Red Hat Single Sign-On 7affected

CWE

CWE-1035

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.