Improper access control in Splunk Enterprise - CVE-2026-20259
Published: June 12, 2026
Vulnerability identifier: #VU134465
CSH Severity: Low
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20259
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in the ownership reassignment endpoint when reassigning saved search ownership. A remote privileged user can reassign saved search ownership to users outside their authorized scope to disclose sensitive information.
Exploitation requires a role that includes the edit_saved_search_owner capability.
Affected software
Splunk Enterprise
How to mitigate CVE-2026-20259
Install security update from vendor's website.
Splunk Enterprise - addressed in versions 10.0.7, 10.2.4