CVE-2026-76326— Stored Cross-Site Scripting through Dashboard Sparkline Tooltip Options in Splunk Enterprise
Quick assessment
Affected
Splunk Splunk Enterprise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Splunk Enterprise 版本低于 10.4.2、10.2.6、10.0.9 和 9.4.14 中，不具有 “admin” 或 “power” Splunk 角色的用户可以将一个在浏览器中运行 JavaScript 的仪表板视图存储起来。当其他用户打开该视图并将鼠标悬停在迷你图（sparkline）表格单元格上时，就会触发该 JavaScript 代码的执行，从而使得攻击者可以访问该用户所拥有的所有相关数据及系统完整性权限。该漏洞之所以存在，是因为仪表板表格渲染器在显示前未对工具提示（tooltip）
Possible ATT&CK Techniques 3 AI
T1005 · Data from Local System T1552.004 · Private Keys T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4< 10.4.2 |
affected |
10.2< 10.2.6 |
affected | ||
10.0< 10.0.9 |
affected | ||
9.4< 9.4.14 |
affected |
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I. Basic Information for CVE-2026-76326
Vulnerability Information
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Vulnerability Title
Stored Cross-Site Scripting through Dashboard Sparkline Tooltip Options in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4 ~ 10.4.2 | - |
|
II. Public POCs for CVE-2026-76326
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Splunk · 2026-08-19 · 110 CVEs total
| CVE-2026-76311 | 9.4 CRITICAL | Improper Access Control in Embedded Report Dispatch Archives in Splunk Enterprise |
| CVE-2026-76312 | 9.4 CRITICAL | Improper Access Control through Embedded Reports in Splunk Enterprise |
| CVE-2026-76310 | 9.4 CRITICAL | Improper Access Control through Embedded Report REST API Requests in Splunk Enterprise |
| CVE-2026-76404 | 9.1 CRITICAL | Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server |
| CVE-2026-76335 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76351 | 8.8 HIGH | Server-Side Request Forgery (SSRF) through the Report Notification REST API in Splunk Secu |
| CVE-2026-76253 | 8.8 HIGH | Privilege Escalation through Scheduled Search Alert Action Configuration in Splunk Enterpr |
| CVE-2026-76315 | 8.8 HIGH | Code Injection through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76352 | 8.8 HIGH | Improper Authorization through the REST API in Splunk Enterprise |
| CVE-2026-76317 | 8.8 HIGH | Path Traversal through the Lookup Configuration REST API in Splunk Enterprise |
| CVE-2026-76313 | 8.8 HIGH | Remote Code Execution (RCE) through the REST API in Splunk Enterprise |
| CVE-2026-76395 | 8.8 HIGH | Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading |
| CVE-2026-76389 | 8.8 HIGH | Server-Side Request Forgery (SSRF) through the REST API in Cisco Talos Intelligence for En |
| CVE-2026-76350 | 8.8 HIGH | Improper Privilege Management through PDF Attachments for Email Alert Actions in Splunk En |
| CVE-2026-76319 | 8.8 HIGH | Remote Code Execution (RCE) through Federated Search in Splunk Enterprise |
| CVE-2026-76314 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76259 | 8.8 HIGH | Improper Privilege Management on the Management Port in Splunk Enterprise for Windows |
| CVE-2026-76316 | 8.8 HIGH | Stored SPL Injection through Deployment Server Broker Registration in Splunk Enterprise |
| CVE-2026-76391 | 8.3 HIGH | Improper Privilege Management through Agent Run History in Splunk AI Toolkit |
| CVE-2026-76394 | 8.3 HIGH | Missing Authorization in Container and Connection Management through the REST API in Splun |
Showing top 20 of 110 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-76326
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