SPL Command Safeguards Bypass through Cross-Site Request Forgery (CSRF) in Deployment Server in Splunk Enterprise
Advisory ID: SVD-2026-0702
CVE ID: CVE-2026-20296
Published: 2026-07-15
Last Update: 2026-07-15
CVSSv3.1 Score: 8.3, High
CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
CWE: CWE-352
Bug ID: VULN-79290
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.
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.
The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit this vulnerability at will.
Solution
Upgrade Splunk Enterprise to versions 10.4.1, 10.2.5, 10.0.8, and 9.4.13, or higher.
Splunk is actively monitoring and patching Splunk Cloud Platform instances.
Product Status
| Product | Base Version | Component | Affected Version | Fix Version |
|---|---|---|---|---|
| Splunk Enterprise | 10.4 | Splunk Web | 10.4.0 to 10.4.0 | 10.4.1 |
| Splunk Enterprise | 10.2 | Splunk Web | 10.2.0 to 10.2.4 | 10.2.5 |
| Splunk Enterprise | 10.0 | Splunk Web | 10.0.0 to 10.0.7 | 10.0.8 |
| Splunk Enterprise | 9.4 | Splunk Web | 9.4.0 to 9.4.12 | 9.4.13 |
| Splunk Cloud Platform | 10.5.2605 | Splunk Web | Below 10.5.2605.0 | 10.5.2605.0 |
| Splunk Cloud Platform | 10.4.2604 | Splunk Web | Below 10.4.2604.7 | 10.4.2604.7 |
| Splunk Cloud Platform | 10.3.2512 | Splunk Web | Below 10.3.2512.16 | 10.3.2512.16 |
| Splunk Cloud Platform | 10.2.2510 | Splunk Web | Below 10.2.2510.18 | 10.2.2510.18 |
| Splunk Cloud Platform | 10.1.2507 | Splunk Web | Below 10.1.2507.24 | 10.1.2507.24 |
Mitigations and Workarounds
The vulnerability affects instances with Splunk Web turned on. Turning Splunk Web off is a possible workaround.
See Disable unnecessary Splunk Enterprise components and the web.conf configuration specification file for more information on turning off Splunk Web.
Detections
None
Severity
Splunk rates this vulnerability an 8.3, High, with a CVSSv3.1 vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.