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TI-2026-71735 Aliases CVE-2026-74030

Wazuh SCA YAML alias expansion lets manager exhaust agent memory

Priority LOW 31CWE-776Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Wazuh from 3.9.0 before 4.14.8 contains uncontrolled YAML alias expansion in the yaml2json_node function (CWE-776). An attacker with high privileges on the manager can push a small SCA policy with nested aliases that exhausts agent memory and causes wazuh-modulesd to be killed on every agent in a group.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

Wazuh from 3.9.0 before 4.14.8 contains an uncontrolled YAML alias expansion vulnerability in yaml2json_node that allows a manager-controlled policy to exhaust agent memory. Attackers controlling the manager can push a small SCA policy with nested aliases via merged.mg to OOM-kill wazuh-modulesd on every agent in a group.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00403 34th percentileScored 2026-11-07
Fix Fixed wazuh-agent (Wazuh): 4.14.8wazuh-manager (Wazuh): 4.14.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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-agent3.9.0 to before 4.14.84.14.8Patch availableCNA
Wazuhwazuh-manager3.9.0 to before 4.14.84.14.8Patch availableCNA
  • wazuh-agent VendorWazuh Affected 3.9.0 to before 4.14.8 Fixed in 4.14.8 Patch available CNA
  • wazuh-manager VendorWazuh Affected 3.9.0 to before 4.14.8 Fixed in 4.14.8 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*——Wazuh
  • cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* Versions — — ·Wazuh

Remediation

Upgrade wazuh-agent and wazuh-manager to version 4.14.8. Both products list 4.14.8 as the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

  • Fix · CNA wazuh-agent (Wazuh) Fixed in 4.14.8
  • Fix · CNA wazuh-manager (Wazuh) Fixed in 4.14.8

Fixed in the same release

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

  • Release ·

    wazuh-manager 4.14.8

    13 records Highest priority Priority HIGH 5 HIGH, 6 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-71739 Missing origin check in Wazuh manager allows arbitrary file readPriority HIGH 77
    • TI-2026-71743 Arbitrary file overwrite in Wazuh manager enables root code executionPriority HIGH 76
    • TI-2026-71742 Session invalidation bypass in Wazuh manager token checkPriority HIGH 72
    Show all 13 records →
  • Release ·

    wazuh-agent 4.14.8

    2 records Highest priority Priority HIGH 1 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-71741 Remote code execution in Wazuh agent via SCA policy trustPriority HIGH 72
    Show all 2 records →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-74030
  2. 2026-10-13 CISA SSVC decision points changed
  3. 2026-10-13 Priority changed: MEDIUM → LOW

References

Patch 1

Advisory 1

  • TI-2025-17783 Remote code execution in Wazuh server KEVCVSS 3.1CRITICAL 9.9
  • TI-2026-47604 Wazuh GitHub Actions Shell Injection via Fork Pull Request CVSS 4.0CRITICAL 9.3
  • TI-2026-71739 Missing origin check in Wazuh manager allows arbitrary file read CVSS 4.0HIGH 8.7
  • TI-2026-71743 Arbitrary file overwrite in Wazuh manager enables root code execution CVSS 4.0CRITICAL 9.4
  • 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
See all 101 →

Sources

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