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High8.8Splunk

High [CVE-2026-76389] Server-Side Request Forgery (SSRF) through the REST API in Cisco Talos Intelligence for Enterprise Security Cloud

This high-severity Splunk advisory covers CVE-2026-76389 affecting Cisco Talos Intelligence for Enterprise Security Cloud.

CVE-2026-76389 Published Aug 19, 2026Updated by vendor Aug 19, 2026
Affected products & platforms
SplunkES / ITSI / SOAR
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Summary

In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, a user that holds a role with the get_talos_enrichment capability could send a crafted request to the Talos intelligence enrichment Representational State Transfer (REST) API endpoint and cause the instance to make an outbound request to an attacker-controlled server.

The request could expose tokens that compromise all relevant data and system integrity in the Splunk instance. The vulnerability is possible because the Talos intelligence enrichment REST endpoint accepts the destination for authenticated Splunk management requests from request data.

For more information see Deploy Cisco Talos Intelligence for Splunk Enterprise Security ( ) in the Splunk documentation.

Affected versions
  • Cisco Talos Intelligence for Enterprise Security Cloud 1.0 before 1.0.3

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Fixed versions
  • 1.0.3

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • 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.

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

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