Wazuh Server 3.9.0 < 4.14.5 DoS (CVE-2026-44253)

The version of Wazuh Server on the remote host is at least 3.9.0 and prior to 4.14.5. It is, therefore, affected by a denial of service vulnerability: - The cluster protocol allows an authenticated cluster node to exhaust memory on the master. The receivestr method accepts an attacker-controlled...

CVE-2026-44253 Wazuh: Cluster Protocol Memory Exhaustion (DoS) via unbounded receive_str allocation and div_msg_box accumulation

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receivestr method...

CVE-2026-44253 Wazuh: Cluster Protocol Memory Exhaustion (DoS) via unbounded receive_str allocation and div_msg_box accumulation

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receivestr method...

CVE-2026-44253

CVE-2026-44253 affects the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py, allowing an authenticated cluster node to exhaust memory on the master. The root cause is twofold: the receive_str() method accepts an attacker-controlled total for InBuffer without a maximum, enabling a ...

EUVD-2026-62552

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receivestr method...

CVE-2026-44253: Memory Allocation with Excessive Size Value

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receivestr method...