CVE-2026-20252
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.4.2604.3, 10.3.2512.12, 10.2.2510.14, 10.1.…
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 10.4.2604.3, 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could send server-side requests to arbitrary internal destinations through the Dashboard Studio PDF export feature. The vulnerability exists because the trusted-domain validation uses a prefix match that can be bypassed with attacker-controlled subdomains (for example, docs.splunk.com.evil.com), and because the PDF export service follows HTTP redirects automatically without re-validating each redirect target against the allowlist.
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 10.1.2507.22 from 10.2.2510 before 10.2.2510.14 from 10.3.2512 before 10.3.2512.12 from 10.4.2604 before 10.4.2604.3 |