CVE-2026-61800

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Source

https://cve.org/CVERecord?id=CVE-2026-61800

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61800.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-61800

Aliases

GHSA-3jff-488g-335f

Published

2026-08-27T23:26:28.110Z

Modified

2026-08-30T03:30:31.945345736Z

Severity

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

Summary

Wazuh cluster worker file sync allows arbitrary file write under /var/ossec (incomplete fix for CVE-2026-30893)

Details

Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. In versions 4.4.0 through 4.14.6, a party holding the cluster key can write, overwrite, or delete arbitrary files under /var/ossec on worker nodes, leading to remote code execution as root. During cluster file synchronization, the non-merged branch of updatemasterfilesinworker() moves each staged file to a destination derived only from safejoin(), which confines the path to /var/ossec but never verifies that the file lands in the directory declared by its clusteritem_key. Because the destination check present on the primary node and on the worker's merged branch was not applied, a peer can place files at attacker-chosen locations under /var/ossec, including paths that are executed as root, and the delete branch has the same gap. This is an incomplete fix for CVE-2026-30893, which addressed traversal outside /var/ossec but left this path able to redirect files anywhere within it. This issue is fixed in version 4.14.7.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61800.json",
    "cwe_ids": [
        "CWE-22"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/wazuh/wazuh

Affected ranges

Type

GIT

Repo

https://github.com/wazuh/wazuh

Events

Introduced

2477e9fa50bc1424e834ac8401ce2450a5978e75

Fixed

a42268a27c555d9348d5598fb8751eaf4c8e9024

Database specific

Show details

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "4.4.0"
        },
        {
            "fixed": "4.14.7"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61800.json"