OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Splunk AI Toolkit (Splunk) Fixed in 5.7.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Splunk AI Toolkit 5.7.4
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-16454 Insecure Default Domain Allowlist in Splunk AI ToolkitPriority LOW 19
Timeline
- 2026-10-02 Threatist record created from CVE-2026-20266
- 2026-10-03 Alias added: GHSA-vxp7-5w84-27pf
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
More Splunk Ai Toolkit vulnerabilities
- TI-2026-53450 Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI Toolkit CVSS 3.1HIGH 8.8
- TI-2026-53449 Missing Authorization in Container and Connection Management through the REST API in Splunk AI Toolkit CVSS 3.1HIGH 8.3
- TI-2026-53446 Improper Privilege Management through Agent Run History in Splunk AI Toolkit CVSS 3.1HIGH 8.3
- TI-2026-53454 Incorrect Permission Assignment for Scheduled Searches in Splunk AI Toolkit CVSS 3.1HIGH 8.1
- TI-2026-53452 Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit CVSS 3.1HIGH 8.1
- TI-2026-53451 Improper Access Control through Scheduled Searches in Splunk AI Toolkit CVSS 3.1HIGH 7.5
Sources
- CVE-2026-20266 · CVE Program
- CVE-2026-20266 · NVD
- FIRST EPSS
- GHSA-vxp7-5w84-27pf · GitHub Advisory Database · CC BY 4.0
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