HIGH 7.1 NVD
CVE-2026-74039
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
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.
References
- https://github.com/wazuh/wazuh/pull/37034
- https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q
- https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-context
- https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-08-18 via NVD.
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