CVE-2026-44256

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Source
https://cve.org/CVERecord?id=CVE-2026-44256
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44256.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44256
Aliases
  • GHSA-c3m6-fp2h-wmr4
Published
2026-08-19T16:21:49Z
Modified
2026-09-20T11:45:47Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
Wazuh: CRLF Log Injection via Unsanitized Basic-Auth Username
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-117"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44256.json"
}
References

Affected packages

Git / github.com/wazuh/wazuh

Affected ranges

Type
GIT
Repo
https://github.com/wazuh/wazuh
Events
Introduced
2477e9fa50bc1424e834ac8401ce2450a5978e75
Fixed
44c2925b46bd058d2426bd44ed1b3e5d7b7b03b4
Introduced
cddd833300cb5af494ba7dab31192bae649eb184
Fixed
cddf3fd16b0f945b28eb9c27714de3cc344e0926
Fixed
b58b3b2552497639b1b2a2b23e8de87e4ce9cf02
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:wazuh:wazuh:5.0.0:beta1:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "4.4.0"
        },
        {
            "fixed": "4.14.6"
        },
        {
            "introduced": "5.0.0-beta1"
        },
        {
            "last_affected": "5.0.0-beta1"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

5.*
5.0.0-beta1
v5.*
v5.0.0-beta1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44256.json"