Is this vulnerability remotely exploitable over the internet?

It is exploitable over the Wazuh cluster communication channel, not directly by arbitrary external clients. An attacker generally needs to control or impersonate a cluster peer, which might be achieved by compromising one node, abusing misconfiguration, or obtaining cluster authentication material.

What level of access does an attacker need to exploit this?

The attacker must be able to act as an authenticated cluster peer. This typically means they already have access to a node in the cluster or to the credentials/keys used for cluster synchronization, enabling them to send crafted synchronization data that the vulnerable extraction routine will process.

What is the safest general fix pattern?

The most robust fix is to enforce strict path confinement within the extraction routine: normalize incoming paths, reject any that attempt to traverse outside the intended directory, and ensure all file writes are explicitly scoped to a predefined, non-sensitive directory. Combining this with least-privilege execution (so the cluster daemon cannot write to code or system directories) significantly reduces the risk.

Severity:

CRITICAL RISK

(9.0)

Path Traversal in Cluster Synchronization (CWE-22) in Wazuh

CVE-2026-30893

Published:

Apr 29, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-284;CWE-434

HIGH RISK

HIGH

(7.3)

Unrestricted File Upload (CWE-434) via Engine Handler exec in MindsDB BYOM Integration

Remote Code Execution and Arbitrary File Upload

May 3, 2026

CWE-287

HIGH RISK

HIGH

(7.3)

Improper Authentication (CWE-287) in JwtAuthenticationTokenFilter of yudao-cloud Ruoyi-Vue-Pro

Authentication Bypass / Unauthorized Access

May 3, 2026

Vulnerability Type

Category:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-73

Impact:

Remote Code Execution via Arbitrary File Write

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Arbitrary File Write

CWE:

CWE-22;CWE-73

Impact:

Remote Code Execution via Arbitrary File Write

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Path Traversal in Cluster Synchronization (CWE-22) in Wazuh

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

Unrestricted File Upload (CWE-434) via Engine Handler exec in MindsDB BYOM Integration

HIGH RISK

HIGH

(7.3)

Improper Authentication (CWE-287) in JwtAuthenticationTokenFilter of yudao-cloud Ruoyi-Vue-Pro

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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