CVE-2026-74039 — Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context
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 sub…
Published: 2026-08-18 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7