CVE-2026-78607
Published:September 01, 2026
Updated:September 02, 2026
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 Packages
https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) =v9.5.0 <v9.5.1Fix Suggestion:
Update to version v9.5.1https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v9.4.0 <v9.4.4Fix Suggestion:
Update to version v9.4.4https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v9.1.0 <v9.3.8Fix Suggestion:
Update to version v9.3.8https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v8.19.0 <v8.19.19Fix Suggestion:
Update to version v8.19.19Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Missing Authorization