CVE-2026-102407: Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification

Overview

Severity

Medium (CVSS 5.4)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-08

EPSS Score

0.22% (percentile: 11.3%)

Affected Products (1)

Other

• 20188-17084

Revision History

• 2026-10-08: Information published.