CVE-2026-76349
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
In Splunk Enterprise versions below 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user could trick an authenticated user into running arbitrary SPL commands with the victim's permissions via a crafted Splunk Web link. The vulnerability is due to substituting URL-supplied form token values into SPL searches without sanitization. The attack requires phishing the user.
Risk Assessment
The risk is unauthorized access to all data available to the authenticated user, potentially leading to data confidentiality and integrity breaches.
Recommendation
Upgrade Splunk Enterprise to version 10.4 or later, or at least to 10.2.6, 10.0.9, or 9.4.14. Also educate users about opening suspicious links.
Original NVD description (English source)
In Splunk Enterprise versions below 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user could trick an authenticated user into running arbitrary Search Processing Language (SPL) commands using the permissions of the authenticated user through a crafted Splunk Web link. The SPL commands could access all relevant data. The vulnerability does not affect Splunk Enterprise 10.4 versions and above. The vulnerability is possible because Splunk Web substitutes form token values supplied through the Uniform Resource Locator (URL) into SPL searches without neutralizing them. The vulnerability requires the attacker to phish the user by tricking them into opening the crafted link. The unauthenticated user should not be able to exploit the vulnerability at will. For more information see Token reference (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/simple-xml-dashboards/10.2/simple-xml-reference/token-reference) in the Splunk documentation.