High severity7.5NVD Advisory· Published Sep 18, 2026· Updated Oct 15, 2026
CVE-2026-93564
CVE-2026-93564
Description
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.
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Affected products
2Patches
Vulnerability mechanics
References
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