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Vulnerability record · CVE-2026-49441 · published 19 August 2026

CVE-2026-49441: Wazuh vulnerability

Wazuh · Wazuh

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.

9.1 CVSS 3.1 Critical EPSS 0.77% · top 46.0% CWE-73 · CWE-73
9.1CVSS 3.1 base score
0.77%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
15 Sep 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/wazuh/wazuh/commit/7f13682cf5f01f69452f723a608ab2d89cfb2133 Patch
https://github.com/wazuh/wazuh/pull/36296 Issue TrackingPatch
https://github.com/wazuh/wazuh/releases/tag/v4.14.6 PatchRelease Notes
https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta3 PatchRelease Notes
https://github.com/wazuh/wazuh/security/advisories/GHSA-3v57-hgvj-3vj2 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-49441), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.