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TI-2026-52013 Aliases CVE-2026-74039

Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context

Priority MEDIUM 64CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1333.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00555 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed wazuh-manager (Wazuh): 4.14.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Wazuhwazuh-manager4.0.0 to before 4.14.7; 5.0.0-beta24.14.7Patch availableCNA
  • wazuh-manager VendorWazuh Affected 4.0.0 to before 4.14.7; 5.0.0-beta2 Fixed in 4.14.7 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*4.0.0 to before 4.14.7VulnerableWazuh
cpe:2.3:a:wazuh:wazuh:5.0.0:beta1:*:*:*:*:*:*5.0.0 beta1VulnerableWazuh
cpe:2.3:a:wazuh:wazuh:5.0.0:beta2:*:*:*:*:*:*5.0.0 beta2VulnerableWazuh
  • cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.14.7 Vulnerable ·Wazuh
  • cpe:2.3:a:wazuh:wazuh:5.0.0:beta1:*:*:*:*:*:* Versions 5.0.0 beta1 Vulnerable ·Wazuh
  • cpe:2.3:a:wazuh:wazuh:5.0.0:beta2:*:*:*:*:*:* Versions 5.0.0 beta2 Vulnerable ·Wazuh

Remediation

  • Fix · CNA wazuh-manager (Wazuh) Fixed in 4.14.7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    wazuh-manager 4.14.7

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-52015 Wazuh 4.4.0 < 4.14.7 DoS via fdecompress_files() Zip BombPriority MEDIUM 64
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-74039

References

Exploit 1

Patch 1

  • TI-2025-17783 Remote code execution in Wazuh server KEVCVSS 3.1CRITICAL 9.9
  • TI-2026-23722 Path traversal in wazuh CVSS 3.1CRITICAL 9.9
  • TI-2024-01157 Remote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theft CVSS 4.0CRITICAL 9.5
  • TI-2026-22556 Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64 CVSS 3.1HIGH 8.2
  • TI-2026-35598 Wazuh: cluster peer can read arbitrary master files and forge offline REST API… CVSS 3.1CRITICAL 9.1
  • TI-2026-35467 Wazuh: merged-file header path traversal in cluster sync allows arbitrary file write under WAZUH_PATH in Wazuh manager CVSS 3.1CRITICAL 9.1
See all 72 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences