medium5.7
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 …
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Splunk | Splunk | from 9.3.0 before 9.3.13 from 9.4.0 before 9.4.12 from 10.0.0 before 10.0.7 from 10.2.0 before 10.2.4 |
| Splunk | Splunk Cloud Platform | from 9.3.2411 before 9.3.2411.132 from 10.1.2507 before 10.1.2507.23 from 10.2.2510 before 10.2.2510.15 from 10.3.2512 before 10.3.2512.13 |