MEDIUM 5.3 NVD
CVE-2026-44255
Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.che
Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.check_user() in framework/wazuh/rbac/orm.py performs check_password_hash() only when the supplied username exists. A nonexistent username returns immediately, while a valid username causes an expensive bcrypt calculation. An unauthenticated remote attacker can compare authentication response times to enumerate valid Wazuh usernames and use that information in subsequent credential attacks. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.
References
- https://github.com/wazuh/wazuh/commit/5ecea7b38b998407cb0d205467dd247140a0f981
- https://github.com/wazuh/wazuh/pull/35757
- https://github.com/wazuh/wazuh/releases/tag/v4.14.6
- https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2
- https://github.com/wazuh/wazuh/security/advisories/GHSA-3978-44q9-9px9
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-08-19 via NVD.
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