CVE-2026-44256
mediumpriority · track · 0EPSS 0.005 · 42 %ileDEUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2699Wazuh: Mehrere SchwachstellenDeutsch2026-08-06csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Wazuh ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um einen SQL-Injection Angriff durchzuführen.
sources
Which sources assert this record, and when.
references (5) nvd
External citations — patches, advisories, analysis.
- https://github.com/wazuh/wazuh/commit/cddf3fd16b0f945b28eb9c27714de3cc344e0926Patch
- https://github.com/wazuh/wazuh/pull/35866Issue TrackingPatch
- https://github.com/wazuh/wazuh/releases/tag/v4.14.6Release Notes
- https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2Release Notes
- https://github.com/wazuh/wazuh/security/advisories/GHSA-c3m6-fp2h-wmr4ExploitVendor Advisory
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