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CVE-2026-20255

Improper Input Validation through Classic Dashboards in Splunk Enterprise PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Splunk / Splunk Enterpriseaffected 10.2 before 10.2.4; affected 10.0 before 10.0.7; affected 9.4 before 9.4.12; affected 9.3 before 9.3.13
Splunk / Splunk Cloud Platformaffected 10.3.2512 before 10.3.2512.13; affected 10.2.2510 before 10.2.2510.15; affected 10.1.2507 before 10.1.2507.23; affected 9.3.2411 before 9.3.2411.132

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.