CVE-2026-20266
OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
Description
In Splunk AI Toolkit versions below 5.7.4, a user who holds the "admin" Splunk role could execute arbitrary OS commands on the host running the Splunk Enterprise instance. The vulnerability is possible because of an unsafe shell execution pattern in the btool configuration helper, which constructs OS command strings from dynamic parameters without disabling shell interpretation.
INFO
Published Date :
June 17, 2026, 6:17 p.m.
Last Modified :
June 22, 2026, 12:48 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | d1c1063e-7a18-46af-9102-31f8928bc633 | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Splunk AI Toolkit to version 5.7.4 or later.
- Apply vendor security patches promptly.
- Review and sanitize dynamic input for shell commands.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20266.
| URL | Resource |
|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-0614 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20266 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20266
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20266 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20266 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 22, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:splunk:ai_toolkit:*:*:*:*:*:*:*:* versions from (including) 5.7.0 up to (excluding) 5.7.4 Added Reference Type Cisco Systems, Inc.: https://advisory.splunk.com/advisories/SVD-2026-0614 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added CWE CWE-78 Added SSVC {'id': 'CVE-2026-20266', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-17T18:03:52.980872Z'} -
New CVE Received by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Splunk', 'product': 'Splunk AI Toolkit', 'versions': [{'status': 'affected', 'version': '5.7', 'lessThan': '5.7.4', 'versionType': 'custom'}]}] Added Description In Splunk AI Toolkit versions below 5.7.4, a user who holds the "admin" Splunk role could execute arbitrary OS commands on the host running the Splunk Enterprise instance. The vulnerability is possible because of an unsafe shell execution pattern in the btool configuration helper, which constructs OS command strings from dynamic parameters without disabling shell interpretation. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://advisory.splunk.com/advisories/SVD-2026-0614