CVE Watch19 ago 2026

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, Authe

CVSS

5.3

Medio

EPSS

0.5%

p38

KEV

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Exploit Today

0-100

Publicado: 19 ago 2026 · Última mod.: 19 ago 2026 · CWE-208

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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.

Referencias oficiales

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