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…

PriorityP350high7.6CVSS 3.1

AVNACLPRLUINSUCHILAL

EPSS

0.26%

16.8th percentile

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

13 ranges

Vendor	Product	Version range	Fixed in
splunk	splunk	>= 10.0.0 < 10.0.7	10.0.7
splunk	splunk	>= 10.2.0 < 10.2.4	10.2.4
splunk	splunk	>= 9.3.0 < 9.3.13	9.3.13
splunk	splunk	>= 9.4.0 < 9.4.12	9.4.12
splunk	splunk_cloud_platform	>= 10.1.2507 < 10.1.2507.22	10.1.2507.22
splunk	splunk_cloud_platform	>= 10.2.2510 < 10.2.2510.14	10.2.2510.14
splunk	splunk_cloud_platform	>= 10.3.2512 < 10.3.2512.12	10.3.2512.12
splunk	splunk_cloud_platform	>= 10.4.2604 < 10.4.2604.3	10.4.2604.3
splunk	splunk_cloud_platform	>= 9.3.2411 < 9.3.2411.132	9.3.2411.132
splunk	splunk_enterprise	>= 10.0 < 10.0.7	10.0.7
splunk	splunk_enterprise	>= 10.2 < 10.2.4	10.2.4
splunk	splunk_enterprise	>= 9.3 < 9.3.13	9.3.13
splunk	splunk_enterprise	>= 9.4 < 9.4.12	9.4.12

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