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Path TraversalWeakness · CWE-22

CVE-2026-48024

CRITICAL · 9.1 CVSS v3.1 Published 2026-08-19
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable Zero-click Patch available 5 days old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta3, cluster.unmerge_info() in framework/wazuh/core/cluster/cluster.py constructs paths from peer-controlled merge_type and name values in a merged synchronization archive. process_files_from_worker() in framework/wazuh/core/cluster/master.py does not adequately confine the resulting path to the declared cluster item directory. A cluster peer holding the shared Fernet key can use traversal in files_metadata.json or a merged-file header to write files such as /var/ossec/etc/ossec.conf. Replacing ossec.conf can configure root-executed commands and lead to code execution when Wazuh services reload. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-22

A file path is built from user input without being confined, so sequences like “../” let an attacker step outside the intended directory. That can expose configuration, credentials, or source code, and in the worst case lets an attacker write files where they shouldn't. A durable fix resolves and canonicalises the path, then rejects anything that escapes a known-safe base directory.

General guidance for the path traversal class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

Wazuh 4.14.6 (stable) or 5.0.0-beta3 (if on beta track)

  1. 1. Identify the current Wazuh version by checking /var/ossec/framework/wazuh/__init__.py or running 'wazuh-control info version'
  2. 2. If running a version before 4.14.6 (e.g., 4.0.0 to 4.14.5), upgrade to version 4.14.6 or later
  3. 3. If running version 5.0.0-beta3 or earlier beta, upgrade to 5.0.0-beta3 which contains the fix
  4. 4. Verify the upgrade by checking the Wazuh version after restart: 'wazuh-control start' then confirm version via API or log
  5. 5. Review /var/ossec/etc/ossec.conf to ensure it has not been tampered with during the vulnerability window
  6. 6. Rotate the cluster shared Fernet key after patching to invalidate any potentially compromised keys
Caveat Upgrade within same major version (4.x to 4.14.6) should be low-risk; ensure cluster nodes are upgraded together and test in staging first

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-48024 in production — separate from our analysis above.

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