CVE-2026-74039

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.

Affected Software

VendorProductVersion RangeStatus
Wazuhwazuh-manager4.0.0 < 4.14.7affected
Wazuhwazuh-manager5.0.0-beta2affected

Weaknesses

  • CWE-770: Allocation of Resources Without Limits or Throttling
  • CWE-1333: Inefficient Regular Expression Complexity

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

Additional References

References