---
id: CVE-2026-74038
title: >-
  Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows
  unauthenticated remote attackers to cause denial of service by enrolling an
  agent with a dot-sequence name such as ".." through the enrollment port
summary: >-
  Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows
  unauthenticated remote attackers to cause denial of service by enrolling an
  agent with a dot-sequence name such as ".." through the enrollment port.
  Attackers …
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'
cwe:
  - CWE-22
vendor: wazuh
product: wazuh
affected:
  - 'wazuh >= 4.0.0, < 4.14.6'
patched:
  - wazuh 4.14.6
published: '2026-08-18'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:28:11.567'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74038'
references:
  - url: 'https://github.com/wazuh/wazuh/pull/35833'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/wazuh/wazuh/security/advisories/GHSA-573w-mqw4-jvmr'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wazuh-path-traversal-dos-via-agent-enrollment
    label: disclosure@vulncheck.com
  - url: 'https://github.com/wazuh/wazuh/security/advisories/GHSA-573w-mqw4-jvmr'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00546
epssPercentile: 0.43395
ingestedAt: '2026-09-08T21:11:12.282Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-19T15:07:03.041818Z'
---

## Overview

Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows unauthenticated remote attackers to cause denial of service by enrolling an agent with a dot-sequence name such as ".." through the enrollment port. Attackers exploit insufficient validation in OS_IsValidName() and unsafe path concatenation in delete_diff() to resolve the traversal to the parent queue directory, causing its subdirectories to be removed and stopping all Wazuh services requiring manual recovery.

## Affected

- `wazuh >= 4.0.0, < 4.14.6`

## Remediation

Upgrade past the affected range:

- `wazuh 4.14.6`