CVE-2026-20265
Insecure Default Domain Allowlist in Splunk AI Toolkit
Severity
Medium 4.3
CVSS 3.1
Exploited
Not listed
EPSS
0.002
12.4th percentile
Discovered by
Not disclosed
Published
Jun 17, 2026
Assigned by cisco
Description
In Splunk AI Toolkit versions below 5.7.4, a low-privileged user that does not hold the "admin" or "power" Splunk roles could cause the Splunk AI Toolkit to make outbound requests over HTTP to a server that an attacker controls, which could allow for data exfiltration. The vulnerability exists because of an insecure default domain allowlist in the Splunk AI Toolkit, which does not restrict outbound AI agent requests to approved external domains.
Weakness: CWE-1188
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Splunk Apps & Add-ons | SIEM & Log Management | cna-assigner |
Vendor-reported products (1)
- Splunk · Splunk AI Toolkit
Credit
Gabriel Nitu, Splunk