CVE-2026-28220

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Source

https://cve.org/CVERecord?id=CVE-2026-28220

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28220.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-28220

Aliases

GHSA-w2jj-pfq9-mh9p

Published

2026-07-20T15:26:13Z

Modified

2026-08-12T03:51:17Z

Severity

8.4 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS Calculator

Summary

Wazuh cluster DAPI arbitrary callable deserialization and RBAC context injection allow a cluster peer to execute privileged functions on the master node

Details

Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to version 4.14.5, issues in the Cluster Distributed API (DAPI) handling allow a cluster peer, or any actor able to authenticate to the cluster channel using the shared cluster key, to make the master node deserialize an attacker-controlled callable and execute it under an attacker-controlled RBAC context. The cluster code in framework/wazuh/core/cluster/common.py deserializes JSON with as_wazuh_object(), which resolves any callable whose top-level package is wazuh or api (an overly broad allowlist controlled only by ALLOWED_CALLABLES_PACKAGES), and DAPI requests handled in framework/wazuh/core/cluster/dapi/dapi.py accept a client-supplied rbac_permissions value that run_local() applies as the global RBAC context, so supplying an rbac_mode of black causes authorization checks for expose_resources-protected functions to pass without any legitimate permission assignment. Combined, these allow privileged administrative actions on the master node such as arbitrary file writes under WAZUH_PATH, creation of new API users, and tampering with security.yaml, and can be chained into full manager compromise. This issue has been fixed in version 4.14.5.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28220.json"
}

References

Affected packages

Git / github.com/wazuh/wazuh

Affected ranges

Type

GIT

Repo

https://github.com/wazuh/wazuh

Events

Introduced

8c2c62a6e9dcbcf2c792f7924e8cfdb26842820b

Fixed

460511d384aadc1d539caa6c4aa6a4234d68c9ba

Database specific

Show details

{
    "cpe": "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.14.5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28220.json"