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TI-2026-53411 Aliases CVE-2026-76356GHSA-q6gh-xv9g-wf4c

Authentication Bypass through IP Address Spoofing in the Automation Broker in Splunk SOAR

Priority LOW 38CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00613 49th percentileScored 2026-11-07
Fix Fixed Splunk SOAR (Splunk): 8.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk SOAR8.6 to before 8.6.08.6.0Patch availableCNA
  • Splunk SOAR VendorSplunk Affected 8.6 to before 8.6.0 Fixed in 8.6.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:splunk:soar:*:*:*:*:cloud:*:*:*before 8.6.0VulnerableSplunk
cpe:2.3:a:splunk:soar:*:*:*:*:on-premises:*:*:*before 8.6.0VulnerableSplunk
  • cpe:2.3:a:splunk:soar:*:*:*:*:cloud:*:*:* Versions before 8.6.0 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:soar:*:*:*:*:on-premises:*:*:* Versions before 8.6.0 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk SOAR (Splunk) Fixed in 8.6.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Splunk SOAR 8.6.0

    15 records Highest priority Priority LOW 15 LOW

    Other records, highest priority first

    • TI-2026-53417 Improper Certificate Validation through CyberArk Vault Privileged Access Manager in Splunk SOARPriority LOW 34
    • TI-2026-53412 Remote Code Execution (RCE) through Path Traversal in the REST API in Splunk SOARPriority LOW 34
    • TI-2026-53420 Structured Query Language (SQL) Injection through Custom Lists in Splunk SOARPriority LOW 31
    Show all 15 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-76356
  2. 2026-10-03 Alias added: GHSA-q6gh-xv9g-wf4c

References

Advisory 1

  • TI-2023-03711 Unauthenticated Log Injection In Splunk SOAR CVSS 3.1HIGH 8.6
  • TI-2026-53417 Improper Certificate Validation through CyberArk Vault Privileged Access Manager in Splunk SOAR CVSS 3.1HIGH 7.4
  • TI-2026-53412 Remote Code Execution (RCE) through Path Traversal in the REST API in Splunk SOAR CVSS 3.1HIGH 7.6
  • TI-2026-53420 Structured Query Language (SQL) Injection through Custom Lists in Splunk SOAR CVSS 3.1MEDIUM 6.5
  • TI-2026-53419 Structured Query Language (SQL) Injection through Custom Function Results in Splunk SOAR CVSS 3.1MEDIUM 6.5
  • TI-2026-53418 Structured Query Language Injection through the REST API in Splunk SOAR CVSS 3.1MEDIUM 6.5
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences