Is CVE-2026-56699 actively exploited?

No active exploitation of CVE-2026-56699 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56699 be exploited remotely?

Yes. CVE-2026-56699 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56699?

CVE-2026-56699 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2026-56699

CWE-74Published: July 15, 2026· Updated: Jul 15, 2026

10.0

CVSS v3.1

EPSS:0.35%probability of exploitation in 30 daysPercentile:27.4th

Official Description

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.

NVD Source

Risk Analysis

This critical vulnerability in Wazuh Manager, with a CVSS score of 10.0, allows enrolled agents to inject arbitrary NDJSON operations into OpenSearch bulk requests. This can lead to document deletion, alert tampering, and cross-agent SIEM state manipulation.

No public exploit is currently known for this vulnerability. The flaw is remotely exploitable (AV:N) and has low attack complexity (AC:L), making it a significant concern.

Recommended Action

Upgrade Wazuh Manager to version 5.0.0-beta3 or later. Implement strict input validation and escaping for all data fields used in OpenSearch bulk requests.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-56699 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.