Wazuh cluster sync path traversal in decompress_files() enables arbitrary file write and code execution from authenticated cluster peer

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Summary

CVECVE-2026-30893
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-29 19:16:23 UTC
Updated2026-04-30 20:30:05 UTC
DescriptionWazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.4.0 to before version 4.14.4, a path traversal vulnerability in Wazuh's cluster synchronization extraction routine allows an authenticated cluster peer to write arbitrary files outside the intended extraction directory on other cluster nodes. This can be escalated to code execution in the Wazuh service context by overwriting Python modules loaded by Wazuh components (proof of concept available as separate attachment). In deployments where the cluster daemon runs with elevated privileges, system-level compromise is possible. This issue has been patched in version 4.14.4.

Risk And Classification

Primary CVSS: v3.1 9.9 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.000820000 probability, percentile 0.236880000 (date 2026-05-05)

Problem Types: CWE-22 | CWE-73 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CWE-73 CWE-73: External Control of File Name or Path

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1[email protected]Secondary9CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
3.1CNADECLARED9CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wazuh Wazuh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wazuh Wazuh affected >= 4.4.0, < 4.14.4 Not specified

References

ReferenceSourceLinkTags
github.com/wazuh/wazuh/releases/tag/v4.14.4 [email protected] github.com Release Notes
github.com/wazuh/wazuh/security/advisories/GHSA-m8rw-v4f6-8787 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Vendor Advisory
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