CVE-2026-74038 Wazuh 4.0.0 < 4.14.6 Path Traversal DoS via Agent Enrollment
Unauthenticated attackers can cause denial of service in Wazuh by enrolling agents with malicious names, deleting critical queue directories.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-74038?
CVE-2026-74038 is a high-severity path traversal vulnerability in Wazuh Wazuh, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-74038?
It affects 1 product.
Products include Wazuh Wazuh.
How do I fix CVE-2026-74038?
No fix has been published for CVE-2026-74038 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-74038 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-74038 exists.
Other vulnerabilities in Wazuh Wazuh
- CVE-2025-24016 Wazuh Server Deserialization of Untrusted Data
- CVE-2024-32038 Wazuh Analysis Engine Event Decoder Heap-based Buffer Overflow Remote Code Execution Vulnerability
- CVE-2021-44079 Command injection in n/a
- CVE-2024-1243 Remote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theft
- CVE-2026-61800 Wazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fix for CVE-2026-30893)
Sources
Also known as GHSA-573w-mqw4-jvmr.