CVE-2026-20203
Improper Access Control in Splunk Data Model Acceleration
Publication date: 2026-04-15
Last updated on: 2026-04-17
Assigner: Cisco Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| splunk | splunk | From 10.0.0 (inc) to 10.0.5 (exc) |
| splunk | splunk | From 9.3.0 (inc) to 9.3.11 (exc) |
| splunk | splunk | From 9.4.0 (inc) to 9.4.10 (exc) |
| splunk | splunk | From 10.2.0 (inc) to 10.2.2 (exc) |
| splunk | splunk_cloud_platform | From 10.0.2503 (inc) to 10.0.2503.13 (exc) |
| splunk | splunk_cloud_platform | From 10.2.2510 (inc) to 10.2.2510.10 (exc) |
| splunk | splunk_cloud_platform | From 10.3.2512 (inc) to 10.3.2512.6 (exc) |
| splunk | splunk_cloud_platform | From 9.3.2411 (inc) to 9.3.2411.127 (exc) |
| splunk | splunk_cloud_platform | From 10.1.2507 (inc) to 10.1.2507.19 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-20203 is an improper access control vulnerability in the Data Model Acceleration feature of Splunk Enterprise and Splunk Cloud Platform. It affects certain versions of these products where a low-privileged user, who does not have admin or power roles but has write permission on the app and lacks the high-privilege capability accelerate_datamodel, can improperly enable or disable Data Model Acceleration.
This happens due to insufficient access controls, allowing users with lower privileges to perform actions that should be restricted to higher-privileged roles.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
This vulnerability allows a low-privileged user to improperly enable or disable Data Model Acceleration due to insufficient access controls, which could lead to unauthorized modification of data processing features.
While the CVE description and resources do not explicitly mention impacts on compliance with standards such as GDPR or HIPAA, improper access control and unauthorized changes to data processing could potentially affect data integrity and audit controls required by such regulations.
However, there is no direct information provided about specific compliance impacts or regulatory violations resulting from this vulnerability.
How can this vulnerability impact me? :
The vulnerability allows a low-privileged user to turn on or off Data Model Acceleration, which could affect the integrity of the data processing or analytics within Splunk.
While there is no direct impact on confidentiality or availability, the integrity of the system is impacted at a low level, meaning unauthorized changes to Data Model Acceleration settings could lead to incorrect or inconsistent data analysis results.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability involves improper access control allowing low-privileged users to enable or disable Data Model Acceleration in affected Splunk Enterprise and Cloud Platform versions.
There are no specific detection commands or methods provided in the available resources to identify exploitation or presence of this vulnerability on your network or system.
What immediate steps should I take to mitigate this vulnerability?
The only mitigation available for this vulnerability is to upgrade affected Splunk Enterprise and Splunk Cloud Platform instances to the fixed versions.
- Upgrade Splunk Enterprise to version 10.2.2, 10.0.5, 9.4.10, or 9.3.11 or later.
- Upgrade Splunk Cloud Platform to one of the patched versions such as 10.3.2512.6, 10.2.2510.10, 10.1.2507.19, 10.0.2503.13, or 9.3.2411.127 or later.
No other mitigations or workarounds are currently available.