CVE-2026-110353 | HAProxy up to 3.4.5 H2 Frame src/mux_h2.c h2c_handle_ping resource consumption

October 22, 2026 Yanac

A vulnerability labeled as critical has been found in HAProxy up to 3.4.5. This issue affects the function h2c_handle_ping of the file src/mux_h2.c of the component H2 Frame Handler. Executing a manipulation can lead to resource consumption.

This vulnerability is handled as CVE-2026-110353. The attack can be executed remotely. There is not any exploit available.

The affected component should be upgraded.VulDB Recent EntriesRead More