CVE-2026-44901

What it is

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.

At a glance

Exploitability

Can be exploited from the same network segment with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.7% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-19 17:18 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 11:10 UTC Last updatedMost recent change to the record

Details

Published

2026-08-19 17:18 UTC

Last modified

2026-10-26 11:10 UTC

Exploit probability

0.7% · EPSS, next 30 days

Weakness

CWE-502 · Unsafe deserialization

Record status

Analyzed

Affected

• Wazuh < 4.14.6
• Wazuh 5.0.0

Attack profile CVSS 3.1 · 8.4

Attack vector

Adjacent network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High