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CVE-2026-76326

Stored Cross-Site Scripting through Dashboard Sparkline Tooltip Options in Splunk Enterprise

MEDIUM
5.7
CVSS Score
Published: August 19, 2026 at 09:34 PM UTC
Updated: August 26, 2026 at 04:16 PM UTC
1 product affected across 1 vendorSplunk

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Severity
MEDIUM5.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Splunk· Splunk
95%
10.0 ≤ v < 10.0.910.0.0 ≤ v < 10.0.910.2 ≤ v < 10.2.610.2.0 ≤ v < 10.2.610.4 ≤ v < 10.4.210.4.0 ≤ v < 10.4.29.4 ≤ v < 9.4.149.4.0 ≤ v < 9.4.1410.010.210.49.4
Affected range stops below 10.0.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.14, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://advisory.splunk.com/advisories/SVD-2026-0801

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.7MEDIUMcisco
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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