# CVE-2026-78601: Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure

> CVE-2026-78601: Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure. CVSS 5.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-78601
Last updated: 2026-09-03T13:42:45Z

- Published: 2026-09-02 14:43 UTC · Updated: 2026-09-03 13:42 UTC · Assigner: elastic
- CVSS: 5.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
- EPSS: 0.35%, 28th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-862

## Description

Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Privilege Abuse (CAPEC-122). An authorization control was not applied to a Kibana Entity Store configuration operation, allowing an authenticated user with elevated Kibana privileges to indirectly cause a background task to read from Elasticsearch indices that user is not authorized to access. Derived entity data from those indices is then exposed through the entity store output.

## 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-2026-78601)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-78601)
- [https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-147/390107](https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-147/390107)

---

_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/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-78601 · Markdown: https://rewindex.com/cve/CVE-2026-78601.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-78601 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:56.102Z