Description
Wazuh Manager from 3.0.0 before 4.14.9 contains a memory leak vulnerability in the generic JSON decoder that allows remote attackers to exhaust wazuh-analysisd memory via repeated static fields. Attackers can enroll an agent through passwordless enrollment and send events with duplicate fields such as id, triggering an OOM kill that disables alerting.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wazuh | wazuh | 3.0.0 – < 4.14.9 | 4.14.9 |
Advisories 1
- WID-SEC-2026-4377 Wazuh: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
References
- GitHub Security Advisory (GHSA-6w6h-fwqm-6hjj) vendor-advisory
- Patch Commit patch
- Patch Commit patch
- wazuh v4.14.9 Release Notes release-notes
- VulnCheck Advisory: Wazuh Manager 3.0.0 before 4.14.9 Memory Leak DoS via JSON Decoder third-party-advisory