CVE-2026-76295

SPL Injection through the REST API in Splunk Secure Gateway

Published Oct 21, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, and Splunk Secure Gateway versions below 3.10.12, 3.9.26, and 3.8.73, a user who does not hold the "admin" or "power" Splunk roles could view dashboard and report listings beyond the requested filter scope while remaining within objects that the user can access.
The vulnerability is possible because Splunk Secure Gateway does not neutralize special characters in values before it creates filters for dashboard and report requests.
For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Splunk

Splunk Enterprise

affected

Version	Status	Constraints
`10.4`	affected	< 10.4.4
`10.2`	affected	< 10.2.8
`10.0`	affected	< 10.0.11
`9.4`	affected	< 9.4.16

Splunk

Splunk Secure Gateway

affected

Version	Status	Constraints
`3.10`	affected	< 3.10.12
`3.9`	affected	< 3.9.26
`3.8`	affected	< 3.8.73

Configuration 1 [-]

OR	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:::::enterprise:::*

Configuration 2 [-]

OR	cpe:2.3:a:splunk:splunk_secure_gateway::::::::
	cpe:2.3:a:splunk:splunk_secure_gateway::::::::
	cpe:2.3:a:splunk:splunk_secure_gateway::::::::

No data.

Vendor Product Versions

Splunk

Splunk Enterprise

Version	Status	Scheme	Platform
`[10.4,10.4.4)`	affected	generic	—
`[10.2,10.2.8)`	affected	generic	—
`[10.0,10.0.11)`	affected	generic	—
`[9.4,9.4.16)`	affected	generic	—

Splunk

Splunk Secure Gateway

Version	Status	Scheme	Platform
`[3.10,3.10.12)`	affected	generic	—
`[3.9,3.9.26)`	affected	generic	—
`[3.8,3.8.73)`	affected	generic	—

Remediation

Vendor Solution

Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher. Upgrade Splunk Secure Gateway to versions 3.10.12, 3.9.26, and 3.8.73 or higher.

Vendor Workaround

Turn off or remove the Splunk Secure Gateway app. See [Manage app and add-on objects](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/meet-splunk-apps/manage-app-and-add-on-objects) in the Splunk documentation. Note: Splunk Mobile, Spacebridge, and Mission Control rely on functionality in the Splunk Secure Gateway app. If you do not use any of these apps, features, or functionality, as a potential mitigation, you may turn off or remove the app.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.280% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://advisory.splunk.com/advisories/SVD-2026-1007

History

Oct 30, 2026 4:00 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Splunk splunk
CPEs		cpe:2.3:a:splunk:splunk:::::enterprise:::* cpe:2.3:a:splunk:splunk_secure_gateway::::::::
Vendors & Products		Splunk splunk

Oct 22, 2026 2:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Oct 22, 2026 5:00 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Splunk Splunk splunk Enterprise Splunk splunk Secure Gateway
Vendors & Products		Splunk Splunk splunk Enterprise Splunk splunk Secure Gateway

Oct 21, 2026 11:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, and Splunk Secure Gateway versions below 3.10.12, 3.9.26, and 3.8.73, a user who does not hold the "admin" or "power" Splunk roles could view dashboard and report listings beyond the requested filter scope while remaining within objects that the user can access. The vulnerability is possible because Splunk Secure Gateway does not neutralize special characters in values before it creates filters for dashboard and report requests. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access) in the Splunk documentation.
Title		SPL Injection through the REST API in Splunk Secure Gateway
Weaknesses		CWE-943
References		https://advisory.splunk.com/advisories/SVD-2026-1007
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}`