{"id":"CVE-2026-48024","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-48024","generatedAt":"2026-10-28T02:10:29.290Z","title":"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.","description":"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.","published":"2026-08-19T17:18:51.000Z","lastModified":"2026-10-26T11:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-22"],"affected":["wazuh/wazuh"],"epss":{"score":0.00781,"percentile":0.55682,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/wazuh/wazuh/commit/88fc89fdfb1bf37b9d826e9c281a3d22655733de","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/pull/36204","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/releases/tag/v4.14.6","tags":["Patch","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta3","tags":["Patch","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-gh4h-fx78-q8xc","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-gh4h-fx78-q8xc","tags":["Exploit","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-48024","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}