CVE-2026-49441

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.3.0 until 4.14.6 and 5.0.0-beta3, the non-merged branch of process_files_from_worker() in framework/wazuh/core/cluster/master.py trusts a peer-controlled file_path key from files_metadata.json. The destination is joined to WAZUH_PATH without proving that it remains inside the directory selected by cluster_item_key. A cluster peer holding the shared Fernet key can upload a crafted extra-valid archive and overwrite security-sensitive files such as /var/ossec/etc/ossec.conf. Replacing ossec.conf can configure root-executed commands and lead to code execution after a service reload. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-25)

CWE

CWE-73

Published

2026-08-19

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• wazuh:wazuh

References

• https://github.com/wazuh/wazuh/commit/7f13682cf5f01f69452f723a608ab2d89cfb2133
• https://github.com/wazuh/wazuh/pull/36296
• https://github.com/wazuh/wazuh/releases/tag/v4.14.6
• https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta3
• https://github.com/wazuh/wazuh/security/advisories/GHSA-3v57-hgvj-3vj2

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