CVE-2026-74039 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/wazuh/wazuh/pull/37034 | [email protected] | Issue TrackingPatch |
| https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q | [email protected] | ExploitMitigationVendor Advisory |
| https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-context | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1333 | Inefficient Regular Expression Complexity | [email protected] |
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wazuh wazuh | >= 4.0.0, < 4.14.7 5.0.0 beta1 5.0.0 beta2 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | Initial Analysis | [email protected] |
| Aug 18, 2026 | CVE Modified | CISA-ADP |
| Aug 18, 2026 | New CVE Received | [email protected] |