Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• splunk ai toolkit5.7.0 and later · before 6.0.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

• Splunk Splunk AI Toolkit

  • 5.7 and later · before 6.0.0affected

Other highest-scoring records for the same primary product.

• CVE-2026-20266OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
  36Monitor
• CVE-2026-76395Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI Toolkit
  35Monitor
• CVE-2026-76394Missing Authorization in Container and Connection Management through the REST API in Splunk AI Toolkit
  33Monitor
• CVE-2026-76391Improper Privilege Management through Agent Run History in Splunk AI Toolkit
  33Monitor
• CVE-2026-76399Incorrect Permission Assignment for Scheduled Searches in Splunk AI Toolkit
  32Monitor
• CVE-2026-76396Improper Access Control through Scheduled Searches in Splunk AI Toolkit
  30Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The endpoint fetches the record by the ID sent in the request, but never checks whether the record belongs to the requesting user.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const invoice = await Invoice.findById(req.params.id);2res.json(invoice);

1const invoice = await Invoice.findOne({2  id: req.params.id,3  ownerId: req.user.id,4});5if (!invoice) return res.sendStatus(404);6res.json(invoice);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.