What’s Vulnerable › Vulnerabilities

CVE-2026-76295: SPL Injection through the REST API in Splunk Secure Gateway

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-30
• Weakness: CWE-943

Description

In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, and Splunk Secure Gateway versions below 3.10.12, 3.9.26, and 3.8.73, a user who does not hold the "admin" or "power" Splunk roles could view dashboard and report listings beyond the requested filter scope while remaining within objects that the user can access. The vulnerability is possible because Splunk Secure Gateway does not neutralize special characters in values before it creates filters for dashboard and report requests. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

Affected products

• Splunk Enterprise: from 9.4.0 before 9.4.16; from 10.0.0 before 10.0.11; from 10.2.0 before 10.2.8; from 10.4.0 before 10.4.4 — fixed in 9.4.16, 10.0.11, 10.2.8, 10.4.4
• Splunk Secure Gateway: from 3.8.0 before 3.8.73; from 3.9.0 before 3.9.26; from 3.10.0 before 3.10.12 — fixed in 3.8.73, 3.9.26, 3.10.12
• Splunk Enterprise: from 10.4 before 10.4.4; from 10.2 before 10.2.8; from 10.0 before 10.0.11; from 9.4 before 9.4.16 — fixed in 10.0.11, 10.2.8, 10.4.4, 9.4.16
• Splunk Secure Gateway: from 3.10 before 3.10.12; from 3.9 before 3.9.26; from 3.8 before 3.8.73 — fixed in 3.10.12, 3.8.73, 3.9.26

How to fix

Upgrade to a fixed version: Splunk Enterprise 9.4.16, 10.0.11, 10.2.8, 10.4.4; Splunk Secure Gateway 3.8.73, 3.9.26, 3.10.12; Splunk Enterprise 10.0.11, 10.2.8, 10.4.4, 9.4.16; Splunk Secure Gateway 3.10.12, 3.8.73, 3.9.26. Check the vendor advisory for mitigations.

References

• https://advisory.splunk.com/advisories/SVD-2026-1007

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