VULNERABILITY INTELLIGENCE

CVE-2026-49441

CVSS score9.1 CRITICAL

EPSS probability0.77%

CISA KEVNot currently listed

Published2026-08-19

Last modified2026-10-26

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

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.

Weakness classification

security-advisories@github.com: CWE-73

Primary references

security-advisories@github.com — Patch
security-advisories@github.com — Issue Tracking, Patch
security-advisories@github.com — Patch, Release Notes
security-advisories@github.com — Patch, Release Notes
security-advisories@github.com — Exploit, Vendor Advisory