CVE-2026-71540

The Wazuh security platform is vulnerable to a memory exhaustion issue in versions 3.9.0 through 4.14.7 . The flaw exists in the wazuh-clusterd component (specifically in framework/wazuh/core/cluster/common.py), where the system allocates a payload buffer based on a 20-byte cluster protocol heade...

CVE-2026-71540 Wazuh Manager cluster header parsing allows pre-authentication memory exhaustion

Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. From 3.9.0 until 4.14.7, wazuh-clusterd in framework/wazuh/core/cluster/common.py allocates a payload buffer using the size declared in a 20-byte cluster protocol header before...