CVE-2026-20259 MEDIUM

CVE-2026-20259: Improper Access Control in Splunk Enterprise

Vendor Splunk
Product Splunk Enterprise
Weakness CWE-284
Published June 10, 2026
Last update June 10, 2026

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

In Splunk Enterprise versions below 10.2.4 and 10.0.7, and Splunk Cloud Platform versions below 10.4.2604.0, 10.3.2512.12, 10.2.2510.15, 10.1.2507.23, 10.0.2503.14, and 9.3.2411.131, a user who holds a Splunk role that contains the high-privilege capability `edit_saved_search_owner` could reassign saved search ownership to users outside their authorized scope. The ownership reassignment endpoint lacks access control.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 10, 2026 Record updated