# CVE-2026-78590: Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthorized Deletion of Privileged Resources

> CVE-2026-78590: Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthorized Deletion of Privileged Resources. CVSS 7.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-78590
Last updated: 2026-09-03T13:43:33Z

- Published: 2026-09-02 14:43 UTC · Updated: 2026-09-03 13:43 UTC · Assigner: elastic
- CVSS: 7.3 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
- EPSS: 0.41%, 34th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-22

## 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.

## Affected vendors and products

- Elastic: Kibana

## Tracked companies

- [Elastic Cloud](https://rewindex.com/company/elastic-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-78590)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-78590)
- [https://discuss.elastic.co/t/kibana-8-19-18-9-3-6-9-4-3-security-update-esa-2026-158/390113](https://discuss.elastic.co/t/kibana-8-19-18-9-3-6-9-4-3-security-update-esa-2026-158/390113)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-78590 · Markdown: https://rewindex.com/cve/CVE-2026-78590.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-78590 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:41.608Z