CVE-2026-20296

SPL Command Safeguards Bypass through Cross-Site Request Forgery (CSRF) in Deployment Server in Splunk Enterprise

State: Published
Severity: 8.3 High
Published: Jul 15, 2026
Updated: Jul 16, 2026
Reserved: Oct 8, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	8.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L	cisco

Weaknesses

CWE-352 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.

Affected Products

Product	Versions
Splunk EnterpriseSplunk	10.4 to before 10.4.1Affected 10.2 to before 10.2.5Affected 10.0 to before 10.0.8Affected 9.4 to before 9.4.13Affected
Splunk Cloud PlatformSplunk	10.5.2605 to before 10.5.2605.0Affected 10.4.2604 to before 10.4.2604.7Affected 10.3.2512 to before 10.3.2512.16Affected 10.2.2510 to before 10.2.2510.18Affected 10.1.2507 to before 10.1.2507.24Affected

References

https://advisory.splunk.com/advisories/SVD-2026-0702

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