Medium severity · published Jun 17, 2026
CVE-2026-20265
Insecure Default Domain Allowlist in Splunk AI Toolkit
4.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Splunk AI Toolkit · Splunk
5.7 before 5.7.4 · source: vendor
AT
AI Toolkit · Splunk
5.7.0 before 5.7.4 · source: NVD
Affected product
SA
Splunk AI Toolkit
Splunk
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