CVE-2026-76326
Stored Cross-Site Scripting through Dashboard Sparkline Tooltip Options in Splunk Enterprise
Severity
Medium 5.7
CVSS 3.1
Exploited
Not listed
EPSS
0.002
15.3th percentile
Discovered by
Not disclosed
Published
Aug 19, 2026
Assigned by cisco
Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could store a dashboard view that runs JavaScript in the browser of another user who opens it and hovers over a sparkline table cell, allowing for access to all relevant data and system integrity available to that user. The vulnerability is possible because the dashboard table renderer does not sufficiently restrict tooltip options or escape tooltip content before display.
Weakness: CWE-79
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Splunk Enterprise | SIEM & Log Management | cna-assigner |
Vendor-reported products (1)
- Splunk · Splunk Enterprise
Vendor remediation
Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.