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.
Metrics
Affected Vendors & Products
References
History
Tue, 25 Aug 2026 03:30:00 +0000
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ssvc
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Wed, 19 Aug 2026 19:00:00 +0000
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Wazuh
Wazuh wazuh |
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Wazuh
Wazuh wazuh |
Wed, 19 Aug 2026 16:30:00 +0000
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| Description | 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. | |
| Title | Wazuh: Username Enumeration via Timing Side-Channel | |
| Weaknesses | CWE-208 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-25T02:17:14.746Z
Reserved: 2026-05-05T16:33:55.844Z
Link: CVE-2026-44255
Updated: 2026-08-25T02:17:10.003Z
Status : Received
Published: 2026-08-19T17:18:48.770
Modified: 2026-08-25T03:16:55.107
Link: CVE-2026-44255
No data.
OpenCVE Enrichment
Updated: 2026-08-20T14:15:05Z