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Vulnerability record · CVE-2026-78590 · published 2 September 2026

CVE-2026-78590: Elastic kibana path traversal vulnerability

Elastic · Kibana

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of privileged resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet Settings write access could cause a subsequent administrative action to act on unintended internal resources, resulting in the deletion of privileged resources such as user accounts and other organizational assets. Exploitation requires an administrator to interact with the affected Fleet interface.

7.3 CVSS 3.1 High EPSS 0.40% · top 67.9% CWE-22 · Path traversal
7.3CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
3 Sep 2026Last modified by NVD

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of privileged resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet Settings write access could cause a subsequent administrative action to act on unintended internal resources, resulting in the deletion of privileged resources such as user accounts and other organizational assets. Exploitation requires an administrator to interact with the affected Fleet interface.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://discuss.elastic.co/t/kibana-8-19-18-9-3-6-9-4-3-security-update-esa-2026-158/390113 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-78590), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.