CVE Watch19 ago 2026

CVE-2026-44253

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 W

CVSS

4.9

Medio

EPSS

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KEV

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Exploit Today

0-100

Publicado: 19 ago 2026 · Última mod.: 19 ago 2026 · CWE-770 · CWE-789

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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 receive_str() method accepts an attacker-controlled total for InBuffer without a maximum, so a new_str command can request a multi-gigabyte bytearray and repeated requests accumulate in in_str. The divided-message path also retains flag_divided fragments under unique counters in div_msg_box without a count, aggregate-size, or expiration limit. Exploitation can disrupt agent connectivity and alert processing across the monitored environment. This issue is fixed in versions 4.14.5 and 5.0.0-beta2.

Referencias oficiales

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