CVE-2026-20255

published 2026-06-10

CVE-2026-20255: In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.13, 10.2.2510.15, 10.1.2507.23, and…

Priority P3 34 medium 5.7 CVSS 3.1

AV N AC L PR L UI R S U C H I N A N

In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.13, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious classic dashboard that exfiltrates sensitive data to an external server.

The vulnerability exists because URL validation on the external content dialog is incomplete, which can allow for requests to untrusted domains when a user interacts with a crafted dashboard.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
splunk	splunk	>= 10.0.0 < 10.0.7	10.0.7
splunk	splunk	>= 10.2.0 < 10.2.4	10.2.4
splunk	splunk	>= 9.3.0 < 9.3.13	9.3.13
splunk	splunk	>= 9.4.0 < 9.4.12	9.4.12
splunk	splunk_cloud_platform	>= 10.1.2507 < 10.1.2507.23	10.1.2507.23
splunk	splunk_cloud_platform	>= 10.2.2510 < 10.2.2510.15	10.2.2510.15
splunk	splunk_cloud_platform	>= 10.3.2512 < 10.3.2512.13	10.3.2512.13
splunk	splunk_cloud_platform	>= 9.3.2411 < 9.3.2411.132	9.3.2411.132
splunk	splunk_enterprise	>= 10.0 < 10.0.7	10.0.7
splunk	splunk_enterprise	>= 10.2 < 10.2.4	10.2.4
splunk	splunk_enterprise	>= 9.3 < 9.3.13	9.3.13
splunk	splunk_enterprise	>= 9.4 < 9.4.12	9.4.12

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CWE-20