Splunk SOAR up to 8.5.x Connectivity Check REST API check_connectivity server-side request forgery

Summaryinfo

A vulnerability was found in Splunk SOAR up to 8.5.x. It has been declared as problematic. Affected is an unknown function of the file /rest/support/connectivity/.../check_connectivity of the component Connectivity Check REST API. The manipulation results in server-side request forgery. This vulnerability is identified as CVE-2026-76361. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Splunk SOAR up to 8.5.x. Affected is some unknown processing of the file /rest/support/connectivity/.../check_connectivity of the component Connectivity Check REST API. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality. CVE summarizes:

In Splunk SOAR versions below 8.6.0, a user with the "Administrator" role could use the /rest/support/connectivity/.../check_connectivity endpoint to make Splunk SOAR initiate outbound network connections to arbitrary destinations and determine whether internal hosts and ports are reachable. The Server-Side Request Forgery (SSRF) is possible because the connectivity check REST API does not sufficiently validate the destination before Splunk SOAR connects to it. For more information see Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation.

The advisory is available at advisory.splunk.com. This vulnerability is traded as CVE-2026-76361 since 08/19/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but there is no available exploit.

Upgrading to version 8.6.0 eliminates this vulnerability.

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Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• SOAR

Version

• 8.0
• 8.1
• 8.2
• 8.3
• 8.4
• 8.5

License

• free

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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