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  1. CVE-2026-110354 7.5 Élevée

    HAProxy · HAProxy Enterprise Edition · HAProxy Technologies HAProxy Kubernetes Ingress Controller · HAProxy Technologies Kubernetes Ingress Controller Enterprise

    HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer drains the request before closing the stream, the parser repeatedly re-processes the same bytes without making progress. The affected thread stays busy at 100% CPU after timeouts expire and after the client disconnects, and repeated requests can consume all worker threads until the process is restarted.