CVE-2026-44901

Wazuh Cluster DAPI Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

State: Published
Severity: 8.4 High
Published: Aug 19, 2026
Updated: Aug 19, 2026
Reserved: May 7, 2026

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AffectedItemsWazuhResult.merge() in framework/wazuh/core/results.py trusts the sort_casting field in a cluster worker's JSON response. During a distributed API merge, attacker-controlled type names are resolved through Python builtins without an allowlist. A compromised worker can set sort_casting to exec and place Python source in affected_items, causing the master to execute the payload as root when responses from multiple nodes are merged. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
wazuhwazuh	>= 4.0.0, < 4.14.6Affected >= 5.0.0-beta1, < 5.0.0-beta2Affected

References

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