Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user could trick an authenticated user into opening a crafted link to Monitoring Console. When the authenticated user opens the link, Splunk Enterprise runs attacker-controlled Search Processing Language (SPL) using the permissions of that user. The injected SPL could access data and perform actions available to that user. The vulnerability is possible because Monitoring Console does not sufficiently validate data used to build forwarder dashboard searches. The vulnerability requires the attacker to phish the user by tricking them into opening the crafted link. The unauthenticated user should not be able to exploit the vulnerability at will.
Published: 2026-08-19
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.


Vendor Workaround

The vulnerability affects instances with Splunk Web turned on. Turning Splunk Web off is a possible workaround. See [Disable unnecessary Splunk Enterprise components](https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/install-splunk-enterprise-securely/disable-unnecessary-splunk-enterprise-components) and the [web.conf](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/configuration-file-reference/10.2.0-configuration-file-reference/web.conf) configuration specification file for more information on turning off Splunk Web.

Tracking

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Advisories

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History

Wed, 19 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user could trick an authenticated user into opening a crafted link to Monitoring Console. When the authenticated user opens the link, Splunk Enterprise runs attacker-controlled Search Processing Language (SPL) using the permissions of that user. The injected SPL could access data and perform actions available to that user. The vulnerability is possible because Monitoring Console does not sufficiently validate data used to build forwarder dashboard searches. The vulnerability requires the attacker to phish the user by tricking them into opening the crafted link. The unauthenticated user should not be able to exploit the vulnerability at will.
Title SPL Injection through Monitoring Console Forwarder Filters in Splunk Enterprise
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-08-19T21:34:32.855Z

Reserved: 2026-08-19T12:02:03.626Z

Link: CVE-2026-76330

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T22:17:17.297

Modified: 2026-08-19T22:17:17.297

Link: CVE-2026-76330

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses