Splunk Enterprise/Cloud: Unauthorized Saved Search Ownership Reassignment (Prior to 10.2.4/10.4.2604
CVE-2026-20259 Published on June 10, 2026
Improper Access Control in Splunk Enterprise
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.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-20259 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-20259
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Affected Versions
Splunk Enterprise:- Version 10.2 and below 10.2.4 is affected.
- Version 10.0 and below 10.0.7 is affected.
- Version 10.3.2512 and below 10.3.2512.12 is affected.
- Version 10.2.2510 and below 10.2.2510.15 is affected.
- Version 10.1.2507 and below 10.1.2507.23 is affected.
- Version 10.0.2503 and below 10.0.2503.14 is affected.
- Version 9.3.2411 and below 9.3.2411.131 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.