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 cause data exfiltration through classic dashboards by redirecting a victim to an external site using a protocol-relative URL in a drill-down link.<br><br>The vulnerability exists because the URL classifier in classic dashboards only recognizes `http://` and `https://` schemes when checking for external URLs. Protocol-relative URLs such as `//attacker.com` bypass this check entirely, and Splunk Web does not show the external-navigation warning dialog to the victim.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Splunk | — | Upgrade Splunk Enterprise to version 9.4.12Upgrade Splunk Enterprise to version 9.3.13Upgrade Splunk Enterprise to version 10.2.4Upgrade Splunk Enterprise to version 10.0.7 | Jun 12, 2026 | Jun 10, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub