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CVE-2026-74039 (GCVE-0-2026-74039)

Vulnerability from cvelistv5 – Published: 2026-08-18 17:26 – Updated: 2026-08-18 18:45
VLAI
Title
Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context
Summary
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.
Severity
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
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 18:45 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version CPE status
Wazuh wazuh-manager Affected: 4.0.0 , < 4.14.7 (semver)
Affected: 5.0.0-beta2 (semver)
guessed Create a notification for this product.
Date Public
2026-08-18 00:00
Credits
APhuongKMA jepalfer
Show details on NVD website
To clipboard 

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