CVE-2026-78607

Published: Sep 1, 2026Modified: Sep 2, 2026

7.1

Vector

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

Exploitability: 2.8 / Impact: 4.2

Source: NVD

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 (4)

Products: Elastic: Elasticsearch

Elastic

1 product

Elasticsearch

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Elastic Elasticsearch	From 8.0.0 to 8.19.19
Elastic Elasticsearch	From 9.0.0 to 9.3.8
Elastic Elasticsearch	From 9.4.0 to 9.4.4
Elastic Elasticsearch	Version 9.5.0

Related CWEs

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (1)

https://discuss.elastic.co/t/elasticsearch-8-19-19-9-3-8-9-4-4-9-5-1-security-update-esa-2026-143/390094

Source: security@elastic.co

Vendor Advisory

Timeline

No history available yet.