Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1 REST API filter sql injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1. Affected by this vulnerability is an unknown functionality of the component REST API. The manipulation of the argument filter leads to sql injection. This vulnerability is traded as CVE-2026-76309. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1. It has been rated as critical. This issue affects an unknown functionality of the component REST API. The manipulation of the argument filter with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a low-privileged user that does not hold the "admin" or "power" Splunk roles could inject Structured Query Language (SQL) through the Representational State Transfer (REST) API, causing Splunk Enterprise to evaluate attacker-controlled text as part of a database query. The SQL injection is possible because the REST API incorporates user-supplied filter values into database queries without proper neutralization.

The advisory is shared at advisory.splunk.com. The identification of this vulnerability is CVE-2026-76309 since 08/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 9.4.14, 10.0.9, 10.2.6 or 10.4.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• Enterprise

Version

• 9.4.0
• 9.4.1
• 9.4.2
• 9.4.3
• 9.4.4
• 9.4.5
• 9.4.6
• 9.4.7
• 9.4.8
• 9.4.9
• 9.4.10
• 9.4.11
• 9.4.12
• 9.4.13
• 10.0.0
• 10.0.1
• 10.0.2
• 10.0.3
• 10.0.4
• 10.0.5
• 10.0.6
• 10.0.7
• 10.0.8
• 10.2.0
• 10.2.1
• 10.2.2
• 10.2.3
• 10.2.4
• 10.2.5
• 10.4.0
• 10.4.1

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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CVSSv3info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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