CVE-2026-76356: high-severity vulnerability in Splunk SOAR
Authentication Bypass through IP Address Spoofing in the Automation Broker in Splunk SOAR
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.6%
In Splunk SOAR versions below 8.6.0, an unauthenticated user could spoof the source IP address in a crafted request to an Automation Broker notification endpoint and execute arbitrary code on the Splunk SOAR host. The vulnerability is possible because the Splunk SOAR Automation Broker trusts a client-supplied source IP address header as proof that the request originates from the local system. Successful exploitation can expose all relevant data, affect system integrity, and disrupt service availability. For more information see About Splunk SOAR Automation Broker (https://help.splunk.com/en/splunk-soar/splunk-automation-broker/about-splunk-soar-automation-broker/about-splunk-soar-automation-broker) in the Splunk documentation.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Splunk · Splunk SOARRelated CVEs — Splunk SOAR
In the same product, most dangerous first.
CVE-2026-76359MEDIUMPath Traversal through Universal Forwarder Installer Archive Extraction in Splunk SOAREPSS 0.5%CVE-2026-76358MEDIUMPath Traversal through App Installation Tar Extraction in Splunk SOAREPSS 0.5%CVE-2026-76357HIGHRemote Code Execution (RCE) through Path Traversal in the REST API in Splunk SOAREPSS 0.4%CVE-2026-76527CRITICALImproper Check or Handling of Exceptional Conditions in Splunk SOAREPSS 0.4%CVE-2026-76407CRITICALImproper Access Control in Splunk SOAREPSS 0.4%CVE-2026-76363MEDIUMStructured Query Language Injection through the REST API in Splunk SOAREPSS 0.4%