CVE-2026-102407
Published:October 06, 2026
Updated:October 11, 2026
Incorrect Authorization (CWE-863) in Elasticsearch can lead to unauthorized data stream modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with sufficient privileges over a single resource could use the Modify Data Streams API to modify a data stream to which they were not otherwise authorized, potentially injecting data into it or affecting its ability to be searched normally. This issue does not allow an attacker to read the contents of a data stream they do not otherwise have access to.
Affected Packages
https://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) >=v9.0.0 <v9.3.8Fix Suggestion:
Update to version v9.3.8https://github.com/elastic/elasticsearch.git (GITHUB):
Affected version(s) >=v8.2.2 <v8.19.19Fix Suggestion:
Update to version v8.19.19org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) >=9.4.0 <9.4.4Fix Suggestion:
Update to version 9.4.4org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=9.0.0 <9.3.8Fix Suggestion:
Update to version 9.3.8org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=9.4.0 <9.4.4Fix Suggestion:
Update to version 9.4.4org.elasticsearch:elasticsearch (JAVA):
Affected version(s) >=8.2.2 <8.19.19Fix Suggestion:
Update to version 8.19.19org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) >=8.2.2 <8.19.19Fix Suggestion:
Update to version 8.19.19org.elasticsearch.plugin:x-pack-security (JAVA):
Affected version(s) >=9.0.0 <9.3.8Fix Suggestion:
Update to version 9.3.8Related Resources (2)
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
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
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
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.22