CVE-2026-44256
Wazuh: CRLF Log Injection via Unsanitized Basic-Auth Username
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.
| CWE | CWE-117 |
| Vendor | wazuh |
| Product | wazuh |
| Published | Aug 19, 2026 |
| Last Updated | Aug 19, 2026 |
Get instant alerts for wazuh wazuh
Be the first to know when new medium vulnerabilities affecting wazuh wazuh are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N