Wazuh : peer-controlled metadata key in process_files_from_worker non-merged branch allows arbitrary file write under WAZUH_PATH on Wazuh manager

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-49441
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-19 17:18:54 UTC
Updated2026-08-19 19:17:17 UTC
DescriptionWazuh 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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

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

EPSS: 0.007470000 probability, percentile 0.520930000 (date 2026-08-20)

Problem Types: CWE-73 | CWE-73 CWE-73: External Control of File Name or Path

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wazuh Wazuh affected >= 4.3.0, < 4.14.6 Not specified
CNA Wazuh Wazuh affected >= 5.0.0-beta1, < 5.0.0-beta3 Not specified

References

ReferenceSourceLinkTags
github.com/wazuh/wazuh/security/advisories/GHSA-3v57-hgvj-3vj2 [email protected] github.com
github.com/wazuh/wazuh/releases/tag/v4.14.6 [email protected] github.com
github.com/wazuh/wazuh/commit/7f13682cf5f01f69452f723a608ab2d89cfb2133 [email protected] github.com
github.com/wazuh/wazuh/pull/36296 [email protected] github.com
github.com/wazuh/wazuh/releases/tag/v5.0.0-beta3 [email protected] github.com
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