CVE-2026-20296: The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. in Splunk Splunk Enterprise
In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24, an attacker could trick a user that holds a role with the `list_deployment_server` capability into running arbitrary Search Processing Language (SPL) searches on their behalf as `splunk-system-user`, allowing for access to stored credentials and indexed data.<br><br>The vulnerability is possible because Deployment Server endpoints in Splunk Web do not validate Cross-Site Request Forgery (CSRF) tokens on GET requests, and caller-supplied input is not correctly neutralized before it is placed into an SPL search.
AI Analysis
Technical Summary
This vulnerability in Splunk Enterprise and Splunk Cloud Platform arises from insufficient verification of request authenticity and improper input neutralization in Deployment Server endpoints. Specifically, CSRF tokens are not validated on GET requests, enabling an attacker to coerce a user with the list_deployment_server capability to run arbitrary SPL queries as splunk-system-user. This can lead to unauthorized access to stored credentials and indexed data. The affected versions include Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24. No official remediation level or patch information is provided in the source data.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary SPL searches as the splunk-system-user by tricking a user with the list_deployment_server capability. This can lead to unauthorized disclosure of stored credentials and indexed data, impacting confidentiality and integrity. The vulnerability has a high CVSS score of 8.3, indicating a significant security risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict roles with the list_deployment_server capability to trusted users only and monitor for suspicious activity related to SPL search execution. Avoid clicking on untrusted links that could trigger malicious GET requests. Follow any additional guidance from Splunk's official security advisories.
CVE-2026-20296: The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. in Splunk Splunk Enterprise
Description
In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24, an attacker could trick a user that holds a role with the `list_deployment_server` capability into running arbitrary Search Processing Language (SPL) searches on their behalf as `splunk-system-user`, allowing for access to stored credentials and indexed data.<br><br>The vulnerability is possible because Deployment Server endpoints in Splunk Web do not validate Cross-Site Request Forgery (CSRF) tokens on GET requests, and caller-supplied input is not correctly neutralized before it is placed into an SPL search.
CVSS v3.1
Score 8.3high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Splunk Enterprise and Splunk Cloud Platform arises from insufficient verification of request authenticity and improper input neutralization in Deployment Server endpoints. Specifically, CSRF tokens are not validated on GET requests, enabling an attacker to coerce a user with the list_deployment_server capability to run arbitrary SPL queries as splunk-system-user. This can lead to unauthorized access to stored credentials and indexed data. The affected versions include Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.7, 10.3.2512.16, 10.2.2510.18, and 10.1.2507.24. No official remediation level or patch information is provided in the source data.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary SPL searches as the splunk-system-user by tricking a user with the list_deployment_server capability. This can lead to unauthorized disclosure of stored credentials and indexed data, impacting confidentiality and integrity. The vulnerability has a high CVSS score of 8.3, indicating a significant security risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict roles with the list_deployment_server capability to trusted users only and monitor for suspicious activity related to SPL search execution. Avoid clicking on untrusted links that could trigger malicious GET requests. Follow any additional guidance from Splunk's official security advisories.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.407Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a57c45368715ace431fb294
Added to database: 07/15/2026, 17:33:07 UTC
Last enriched: 07/15/2026, 17:48:16 UTC
Last updated: 07/16/2026, 01:34:24 UTC
Views: 9
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