CVE-2026-56699 PUBLISHED

Wazuh Manager - NDJSON Injection in inventory_sync via Agent-Controlled DataValue.index

Assigner: VulnCheck
Reserved: 22.06.2026 Published: 15.07.2026 Updated: 15.07.2026

Wazuh Manager before 5.0.0-beta3 fails to escape the DataValue.index field when constructing OpenSearch bulk requests, allowing enrolled agents to inject arbitrary NDJSON operations. Attackers can smuggle delete, index, or update operations into bulk requests executed under the manager's admin credentials, enabling document deletion, alert tampering, and cross-agent SIEM state manipulation.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 10

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 10

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	wazuh
Product	wazuh
Versions	Default: unaffected affected from 5.0.0-beta1 to 5.0.0-beta3 (excl.) Version 5.0.0-beta3 is unaffected

Credits

TarPeg007 reporter
juliancnn finder

References

Problem Types

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE