# CVE-2026-49095: Improper Input Validation in Kibana Fleet Leading to Privilege Escalation

> CVE-2026-49095: Improper Input Validation in Kibana Fleet Leading to Privilege Escalation. CVSS 7.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-49095
Last updated: 2026-07-21T10:10:00Z

- Published: 2026-05-28 19:48 UTC · Updated: 2026-07-21 10:10 UTC · Assigner: elastic
- CVSS: 7.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- EPSS: 0.26%, 18th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20

## Description

Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation. An authenticated user with Fleet management privileges can manipulate agent policy configuration by injecting values into a configuration override mechanism that is not adequately validated. An attacker can cause Elastic Agents to be issued API keys with elevated Elasticsearch privileges, potentially granting unauthorized read and write access to sensitive Elasticsearch security indices beyond what is intended for the Fleet management role.

## 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-2026-49095)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-49095)
- [https://discuss.elastic.co/t/kibana-fleet-8-19-16-9-3-5-and-9-4-2-security-update-esa-2026-38/386559](https://discuss.elastic.co/t/kibana-fleet-8-19-16-9-3-5-and-9-4-2-security-update-esa-2026-38/386559)

---

_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-2026-49095 · Markdown: https://rewindex.com/cve/CVE-2026-49095.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-49095 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:30.135Z