CVE-2026-76366
Information Disclosure through the REST API in Splunk SOAR
Severity
Medium 6.5
CVSS 3.1
Exploited
Not listed
EPSS
0.003
21.3th percentile
Discovered by
Not disclosed
Published
Aug 19, 2026
Assigned by cisco
Description
In Splunk SOAR versions below 8.6.0, a user with a valid Splunk SOAR account could use Representational State Transfer (REST) API filtering on playbook runs to recover session tokens that compromise all data available to the affected user. The information disclosure is possible because Splunk SOAR does not block REST API filters from matching values that responses otherwise hide. For more information see REST Run Playbook (https://help.splunk.com/en/splunk-soar/soar-cloud/rest-api-reference/run-playbook-endpoints/rest-run-playbook) 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
Vendor remediation
Upgrade Splunk SOAR to 8.6.0 or higher.