CVE-2026-93564

Impact

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 packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://access.redhat.com/errata/RHSA-2026:69440
• https://access.redhat.com/errata/RHSA-2026:69470
• https://access.redhat.com/errata/RHSA-2026:70257
• https://access.redhat.com/errata/RHSA-2026:83612
• https://access.redhat.com/security/cve/CVE-2026-93564
• https://bugzilla.redhat.com/show_bug.cgi?id=2536953