Path traversal in Wazuh cluster upload functions lets attackers write files
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Wazuh from 4.1.1 before 4.14.8 contains a path traversal flaw (CWE-22) in the cluster upload functions upload_list_file, upload_rule_file, and upload_decoder_file. An attacker who holds the cluster key and controls a malicious cluster worker can write files to arbitrary paths. The traversal sequences bypass REST controller validation, and the files are written as the wazuh user.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
Wazuh from 4.1.1 before 4.14.8 contains a path traversal vulnerability in upload_list_file, upload_rule_file, and upload_decoder_file that allows malicious cluster workers to write files at arbitrary paths. Attackers holding the cluster key can send DistributedAPI requests with ../ sequences in filename, bypassing REST controller validation, to write files as the wazuh user.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade wazuh-manager to version 4.14.8 or later, which fixes the flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
- Fix · CNA wazuh-manager (Wazuh) Fixed in 4.14.8
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
wazuh-manager 4.14.8
13 records Highest priority Priority HIGH 5 HIGH, 6 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-71739 Missing origin check in Wazuh manager allows arbitrary file readPriority HIGH 77
- TI-2026-71743 Arbitrary file overwrite in Wazuh manager enables root code executionPriority HIGH 76
- TI-2026-71742 Session invalidation bypass in Wazuh manager token checkPriority HIGH 72
Timeline
- 2026-10-13 Threatist record created from CVE-2026-74043
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: MEDIUM → LOW
References
More Wazuh vulnerabilities
- TI-2025-17783 Remote code execution in Wazuh server KEVCVSS 3.1CRITICAL 9.9
- TI-2026-47604 Wazuh GitHub Actions Shell Injection via Fork Pull Request CVSS 4.0CRITICAL 9.3
- TI-2026-71739 Missing origin check in Wazuh manager allows arbitrary file read CVSS 4.0HIGH 8.7
- TI-2026-71743 Arbitrary file overwrite in Wazuh manager enables root code execution CVSS 4.0CRITICAL 9.4
- TI-2026-23722 Path traversal in wazuh CVSS 3.1CRITICAL 9.9
- TI-2024-01157 Remote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theft CVSS 4.0CRITICAL 9.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences