VDB
CVE-2026-20255
CVE-2026-20255
PUBLISHED
CVSS 5.7 MEDIUM
Reported by cisco · Published June 10, 2026
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.
Risk Scores
CVSS 3.1
5.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 10.2, 10.0, 9.4 |
| Splunk | Splunk Cloud Platform | 10.3.2512, 10.2.2510, 10.1.2507 |
| Splunk | Splunk Cloud Platform | 9.3.2411, 10.3.2512, 10.2.2510 |
| Splunk | Splunk Enterprise | 10.2, 10.0, 9.4 |
Timeline
- Jun 10, 2026 CVE Published
- Jun 10, 2026 CVE Updated
- Jun 11, 2026 Coalition ESS Score
- Jun 12, 2026 Security Advisory