CVE-2026-49441

CRITICAL
INFO Priority: 0.07 BB Relevance: 63/100
Published: 2026-08-19 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Changed
C: High
I: High
A: High

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 (1)

Affected Software (3)

VendorProductVersion
wazuh wazuh 4.3.0 – 4.14.6
wazuh wazuh 5.0.0
wazuh wazuh 5.0.0

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.77%
Raw Score 0.007740
Percentile 55.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00774
2026-10-28
0.00774

Intelligence Sources

nvd ref →