PT-2026-56440 · Wazuh · Wazuh

Kocaemre + 1 · Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-56401

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Wazuh wazuh-modulesd before 5.0.0-beta3 contains a null pointer dereference vulnerability in inventory sync FlatBuffer DataValue handling. An enrolled agent can send a verifier-valid DataValue message omitting the optional id field, causing wazuh-modulesd to crash when dereferencing data->id()->string view() without null validation, resulting in denial of service.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-56401

Affected Products

Wazuh

References · 4

• https://github.com/wazuh/wazuh/commit/3adf4f87942705aa0ceeba1e145c259cc9dcd242 · Patch
• https://github.com/wazuh/wazuh/security/advisories/GHSA-6hxp-c9x3-qc7p · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56401 · Security Note
• https://vulncheck.com/advisories/wazuh-null-pointer-dereference-in-inventory-sync-datavalue-flatbuffer-handling · Note