What’s Vulnerable › Vulnerabilities

CVE-2026-44901: Wazuh Cluster DAPI Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-08-19 · updated 2026-10-26
• Weakness: CWE-502

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.

Affected products

• wazuh: from 4.0.0 before 4.14.6; 5.0.0-beta1, 5.0.0-beta2 — fixed in 4.14.6

How to fix

Upgrade to a fixed version: wazuh 4.14.6. Check the vendor advisory for mitigations.

References

• https://github.com/wazuh/wazuh/commit/b29849f8abb08d78f257e6106b6111a8a1b0e621
• https://github.com/wazuh/wazuh/pull/35757
• https://github.com/wazuh/wazuh/releases/tag/v4.14.6
• https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2
• https://github.com/wazuh/wazuh/security/advisories/GHSA-8c6v-7g3w-prrq
• https://github.com/wazuh/wazuh/security/advisories/GHSA-8c6v-7g3w-prrq

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