CVE-2026-20254

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 when a higher-privileged user views it, bypassing the external content restriction through a Cascading Style Sheets (CSS) injection.<br><br>The Trusted Domains security check does not fully validate inline style attribute values, which can allow for outbound requests to untrusted domains and credential exfiltration when a victim views a crafted dashboard.

• splunk splunk (>= 9.3.0 < 9.3.13) • splunk splunk (>= 9.4.0 < 9.4.12) • splunk splunk (>= 10.0.0 < 10.0.7) • splunk splunk (>= 10.2.0 < 10.2.4) • splunk splunk cloud platform (>= 9.3.2411 < 9.3.2411.132) • splunk splunk cloud platform (>= 10.1.2507 < 10.1.2507.23) • splunk splunk cloud platform (>= 10.2.2510 < 10.2.2510.15) • splunk splunk cloud platform (>= 10.3.2512 < 10.3.2512.13)