medium6.5
CVE-2026-33754
Wazuh is a free and open source platform used for threat prevention, detection, and response.
Impact
Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.9.0 and above, prior to 4.14.5, a remote attacker can trigger memory exhaustion in the cluster protocol parser by sending a crafted message header with an arbitrarily large payload length. The length is trusted before authentication/decryption and used directly to allocate memory, allowing unauthenticated denial of service of the cluster service. This issue has been fixed in version 4.14.5.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Wazuh | Wazuh | from 3.9.0 before 4.14.5 |