CVE-2026-20266

OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit

Published Jun 17, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Analysis

AI-generated

Technical impact

Splunk AI Toolkit versions older than 5.7.4 allow a user with the "admin" role to execute arbitrary operating system commands on the host running Splunk Enterprise. The flaw stems from the btool configuration helper building shell command strings from dynamic parameters without disabling shell interpretation, creating a classic OS command injection vulnerability. As a result, an attacker who can obtain admin credentials can run any command on the underlying host, compromising confidentiality, integrity, and availability of the system. This is a high‑impact weakness identified as CWE‑78.

Affected Systems

The vulnerability affects Splunk AI Toolkit. Any installation of the toolkit below version 5.7.4 is susceptible. The tool is part of the Splunk platform, so any Splunk Enterprise instance that includes the AI Toolkit and can be accessed by users with the admin role is impacted.

Risk and Exploitability

The CVSS score of 9.1 indicates critical severity. The EPSS score is below 1%, suggesting a low but nonzero likelihood of exploitation in the wild. The vulnerability is not listed in CISA’s KEV catalog, implying no publicly known exploits are confirmed. Extrapolating from the description, the attack vector would require an attacker to gain or abuse an admin role within Splunk Enterprise, either through credential compromise or by exploiting another vulnerability that elevates privileges. Once admin access is achieved, the attacker can invoke arbitrary OS commands via the btool helper, leading to full system compromise.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Splunk AI Toolkit to version 5.7.4 or later, which removes the unsafe command construction from the btool helper.
  • Limit the number of users granted the "admin" role and follow the principle of least privilege to reduce the attack surface.
  • If an immediate upgrade is not possible, mitigate by disabling or restricting access to the btool configuration endpoint, and enable strict input validation or sandboxing of any user‑supplied parameters used in command construction.

Generated by OpenCVE AI on June 18, 2026 at 18:43 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Splunk
Splunk splunk Ai Toolkit
Vendors & Products Splunk
Splunk splunk Ai Toolkit
Type Values Removed Values 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.
Title OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Jun 17, 2026, 6:04 PM
Reserved
Oct 8, 2025, 11:59 AM
Status
Analyzed
Published
Jun 17, 2026, 6:17 PM
Modified
Oct 26, 2026, 11:10 AM