Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk | >= 9.3.0, < 9.3.13 |
| Splunk | Splunk Cloud Platform | >= 9.3.2411, < 9.3.2411.132 |
Related Weaknesses (CWE)
References
- https://advisory.splunk.com/advisories/SVD-2026-0602Vendor Advisory
FAQ
What is CVE-2026-20252?
CVE-2026-20252 is a vulnerability with a CVSS score of 7.6 (HIGH). 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-privileg...
How severe is CVE-2026-20252?
CVE-2026-20252 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-20252?
Check the references section above for vendor advisories and patch information. Affected products include: Splunk Splunk, Splunk Splunk Cloud Platform.