PatchSiren cyber security CVE debrief
CVE-2026-54083 wazuh CVE debrief
A path traversal vulnerability exists in the ip-customblock active response script of Wazuh, an open-source security platform. This script is used for unified XDR and SIEM protection for endpoints and cloud workloads. The vulnerability allows an attacker to create or delete arbitrary files on the filesystem as root. The issue arises because the script builds a file path by directly concatenating the srcip field from alert JSON onto a fixed base directory without validating if the value is a well-formed IP address. An attacker can exploit this by triggering log events with a crafted srcip containing ../ sequences, allowing them to escape the base directory. The block action can create an empty file at an arbitrary location, and the unblock action can delete an arbitrary file. Since the active response daemon runs as root, this includes sensitive files such as system credentials and Wazuh configuration. This issue is fixed in version 4.14.7.
- Vendor
- wazuh
- Product
- Unknown
- CVSS
- HIGH 8.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-28
- Original CVE updated
- 2026-09-15
- Advisory published
- 2026-08-28
- Advisory updated
- 2026-09-15
Who should care
Security teams responsible for endpoint and cloud workload security should assess their exposure to this vulnerability and prioritize patching Wazuh installations to version 4.14.7 or later.
Why it matters
Defenders should prioritize patching Wazuh installations to version 4.14.7 or later to mitigate the path traversal vulnerability in the ip-customblock active response script. Security teams responsible for endpoint and cloud workload security should assess their exposure and apply the fix as soon as possible to prevent potential arbitrary file creation or deletion as root.
- Potential for arbitrary file creation or deletion as root
- Exposure of sensitive files such as system credentials and Wazuh configuration
- Possible disruption of endpoint and cloud workload security
- Need for verification of affected versions and remediation status
Technical summary
The ip-customblock active response script in Wazuh contains a path traversal vulnerability. The script concatenates the srcip field from alert JSON directly onto a fixed base directory without validating if the value is a well-formed IP address. This allows an attacker to create or delete arbitrary files on the filesystem as root by triggering log events with a crafted srcip containing ../ sequences.
Defensive priority
Defenders should prioritize patching Wazuh installations to version 4.14.7 or later to mitigate this vulnerability. Specifically, security teams responsible for endpoint and cloud workload security should assess their exposure and apply the fix as soon as possible.
Recommended defensive actions
- Patch Wazuh installations to version 4.14.7 or later
- Assess exposure and apply the fix as soon as possible
- Review and update security configurations for endpoint and cloud workload protection
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
- Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
Evidence notes
The CVE record and NVD vulnerability detail provide information on the path traversal vulnerability in the ip-customblock active response script of Wazuh. The official CVE Program record and NIST NVD detail page offer source-provided CVE metadata and vulnerability assessment.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-54083 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-54083
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-54083 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-54083
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4
[email protected] - Patch
-
Source reference
Unverified legacy reference
URL: https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6
[email protected] - Exploit, Vendor Advisory
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.