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Wazuh Manager EUVDEUVD-2026-61075

| CVE-2026-74039 HIGH
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-08-18 VulnCheck
Denial Of Service Wazuh Wazuh Manager
7.1
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
7.1 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.5 MEDIUM

Network-reachable endpoint requires low-privilege authenticated account with allow_run_as; only availability is impacted with unchanged scope.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
Aug 18, 2026 - 18:03 vuln.today
Analysis Generated
Aug 18, 2026 - 18:03 vuln.today
CVE Published
Aug 18, 2026 - 17:26 cve.org
HIGH 7.1

DescriptionCVE.org

Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers.

AnalysisAI

CPU exhaustion in Wazuh Manager 4.0.0-4.14.6 and 5.0.0-beta2 allows authenticated API users with the allow_run_as permission to fully deny service to all other API consumers by submitting arbitrarily deeply nested JSON to the POST /security/user/authenticate/run_as endpoint. The API framework processes these structures recursively without any depth or size limit, consuming CPU proportionally to nesting depth until the process becomes unresponsive. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Two conditions must both be true: (1) the attacker must hold a valid Wazuh API credential - exploitation is authenticated, PR:L per the CVSS 4.0 vector; and (2) the allow_run_as flag must be explicitly enabled for that account in Wazuh RBAC configuration - this is a non-default, operator-configured permission. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 4.0 scores this 7.1 with AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H, accurately reflecting that the endpoint is network-reachable, requires only low-privilege credentials (an authenticated account with allow_run_as), and produces high availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade Wazuh Manager to version 4.14.7 or later; the CVE description boundary confirms 4.14.7 as the fixed release. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, identify all Wazuh Manager instances running versions 4.0.0-4.14.6 or 5.0.0-beta2, document which API users possess the allow_run_as permission, and review API logs for unusual deeply nested JSON submissions to POST /security/user/authenticate/run_as. …

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EUVD-2026-61075 vulnerability details – vuln.today
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