# CVE-2026-78607: Missing Authorization in Elasticsearch Leading to Information Disclosure

> CVE-2026-78607: Missing Authorization in Elasticsearch Leading to Information Disclosure. CVSS 5.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-78607
Last updated: 2026-09-02T18:50:29Z

- Published: 2026-09-01 19:20 UTC · Updated: 2026-09-02 18:50 UTC · Assigner: elastic
- CVSS: 5.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS: 0.33%, 26th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-862

## Description

Missing Authorization (CWE-862) in the Elasticsearch custom inference service can lead to information disclosure via Privilege Abuse (CAPEC-122). A user holding only inference execution privileges could cause outbound inference traffic to be directed to a destination of their choosing and could cause administrator-provisioned credentials to be exposed.

## Affected vendors and products

- Elastic: Elasticsearch

## Tracked companies

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

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-78607)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-78607)
- [https://discuss.elastic.co/t/elasticsearch-8-19-19-9-3-8-9-4-4-9-5-1-security-update-esa-2026-143/390094](https://discuss.elastic.co/t/elasticsearch-8-19-19-9-3-8-9-4-4-9-5-1-security-update-esa-2026-143/390094)

---

_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-2026-78607 · Markdown: https://rewindex.com/cve/CVE-2026-78607.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-78607 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:50.889Z