CVE-2026-44256
Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.4.0 until 4.14.6 and 5.0.0-beta2, api/api/middlewares.py decodes the Basic authentication username before credential validation and passes it to the access logger without neutralizing control characters. api/api/alogging.py interpolates that value into the plain-text API log. An unauthenticated attacker can include carriage returns or line feeds in the username to forge entries, obscure activity, or poison systems that consume the plain-text audit log. The JSON log format is not affected because JSON serialization escapes these characters. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.
- Affected products
- Wazuh
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 0.3% (21th percentile)
- Weakness
- CWE-117
- NVD status
- Received
- Published
- 2026-08-19
No indexed exploits for CVE-2026-44256 yet
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