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.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.
- Affected products
- Wazuh
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 0.4% (36th percentile)
- Weakness
- CWE-208
- NVD status
- Received
- Published
- 2026-08-19
No indexed exploits for CVE-2026-44255 yet
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No exploit for CVE-2026-44255 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.