CVE-2026-76307

Sensitive Information Disclosure through REST API Query Filters in Splunk SOAR

Severity
High 7.2
CVSS 3.1
Remote, needs privileges or user interaction what this means
Exploited
Not listed
EPSS
—
Discovered by
Vendor
Vendor-published field
Published
Oct 21, 2026
Assigned by cisco

Description

In Splunk SOAR versions below 8.7.0, a user that holds a role with the Users and Roles view permission could use the Representational State Transfer (REST) API to infer authentication token values for other users. If the inferred token grants administrative access, that user could gain administrative access to the Splunk SOAR instance. The vulnerability is possible because the REST API accepts caller-controlled query filters on sensitive user record fields. For more information see Using the REST API reference for Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/using-the-rest-api-reference-for-splunk-soar-on-premises), Query for Data (https://help.splunk.com/en/splunk-soar/soar-on-premises/rest-api-reference/7.1.0/using-the-splunk-soar-rest-api/query-for-data), and Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/6.4.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) in the Splunk documentation.

Weakness: CWE-200

Affected products

Vendor Product Category Matched by
Cisco Splunk SOAR SIEM & Log Management cna-assigner
Vendor-reported products (1)
  • Splunk · Splunk SOAR

Credit

Eric Li, Splunk

Vendor remediation

Upgrade Splunk SOAR to version 8.7.0 or higher.

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