Wazuh up to 4.14.5/5.0.0-beta1 RBAC ORM orm.py AuthenticationManager.check_user information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Wazuh up to 4.14.5/5.0.0-beta1. This impacts the function AuthenticationManager.check_user of the file framework/wazuh/rbac/orm.py of the component RBAC ORM. The manipulation leads to information disclosure. This vulnerability is referenced as CVE-2026-44255. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Wazuh up to 4.14.5/5.0.0-beta1 and classified as problematic. This issue affects the function AuthenticationManager.check_user of the file framework/wazuh/rbac/orm.py of the component RBAC ORM. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-44255 since 05/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 4.14.6 or 5.0.0-beta2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-2026-98817002). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wazuh 4.14.6/5.0.0-beta2

Timelineinfo

05/05/2026 CVE reserved
08/19/2026 +106 days Advisory disclosed
08/19/2026 +0 days VulDB entry created
08/21/2026 +2 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-44255 (🔒)
GCVE (CVE): GCVE-0-2026-44255
GCVE (VulDB): GCVE-100-393215
CNNVD: CNNVD-2026-98817002 - Wazuh 侧信道信息泄露漏洞

Entryinfo

Created: 08/19/2026 18:42
Updated: 08/21/2026 04:02
Changes: 08/19/2026 18:42 (65), 08/21/2026 04:02 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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