VDB
CVE-2026-20252
CVE-2026-20252
PUBLISHED
CVSS 7.6 HIGH
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 10.4.2604.3, 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.
Risk Scores
CVSS 3.1
7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 10.2, 10.0, 9.4 |
| Splunk | Splunk Cloud Platform | 10.4.2604, 10.3.2512, 10.2.2510 |
| Splunk | Splunk Cloud Platform | 9.3.2411, 10.4.2604, 10.3.2512 |
| Splunk | Splunk Enterprise | 10.0, 9.4, 9.3 |
Timeline
- Jun 10, 2026 CVE Published
- Jun 10, 2026 CVE Updated
- Jun 11, 2026 Coalition ESS Score
- Jun 12, 2026 Security Advisory