CVE-2026-74040
Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in…
- Risk score
- 64/100
- CVSS
- 9.1 v3.1
- Exploit chance (30 days)
- 0.6%
- Published
- 13 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in MasterHandler.process_files_from_worker allowing a cluster worker to overwrite protected master files. Attackers controlling a worker can use a trailing-slash basename bypass and missing extra_valid enforcement to overwrite os…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.14.8 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.1 critical
References
- https://github.com/wazuh/wazuh/releases/tag/v4.14.8
- https://github.com/wazuh/wazuh/security/advisories/GHSA-88p6-7cm8-xwj8
- https://www.vulncheck.com/advisories/wazuh-3.9.0-before-4.14.8-arbitrary-file-overwrite-rce-via-process-files-from-worker
- https://github.com/wazuh/wazuh/security/advisories/GHSA-88p6-7cm8-xwj8
Original description
Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in MasterHandler.process_files_from_worker allowing a cluster worker to overwrite protected master files. Attackers controlling a worker can use a trailing-slash basename bypass and missing extra_valid enforcement to overwrite ossec.conf and agent.conf, achieving root remote code execution across the manager and every agent.
Last activity 13 Oct 2026. Patch Forecast updates every hour.