CVE-2026-76390: In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, an unauthenticated user could access the add-on OpenAPI specification through…

PriorityP434medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

0.39%

31.0th percentile

In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, an unauthenticated user could access the add-on OpenAPI specification through Splunk Web static file paths. The exposed specification could allow for reconnaissance of the add-on Representational State Transfer (REST) API endpoints and authentication model. The vulnerability is possible because the generated OpenAPI specification is packaged in a static file path that Splunk Web serves without authentication. For more information see Deploy Cisco Talos Intelligence for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/user-guide/8.0/introduction/deploy-cisco-talos-intelligence-for-splunk-enterprise-security-cloud-only) in the Splunk documentation.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
cisco	talos_intelligence_for_enterprise_security_cloud	>= 1.0.0 < 1.0.3	1.0.3
splunk	cisco_talos_intelligence_for_enterprise_security_cloud	>= 1.0 < 1.0.3	1.0.3

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