Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could inject arbitrary Search Processing Language (SPL) commands through the geostats command. The injected SPL runs with the permissions of another authenticated user after that user initiates the attacker-controlled geostats search in Splunk Web. The injected SPL could expose all relevant data available to the second user, including stored credentials, and modify lookup files that the second user has permission to change. The vulnerability is possible because the geostats command does not sufficiently validate input before Splunk Enterprise processes it. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The user who does not hold the "admin" or "power" Splunk roles should not be able to exploit the vulnerability at will. For more information see geostats (https://help.splunk.com/en/splunk-enterprise/spl-search-reference/10.0/search-commands/geostats) in the Splunk documentation.
Published: 2026-08-19
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw resides in the geostats command of Splunk Enterprise, which fails to sanitize user supplied input. An attacker who has lured a non‑admin or non‑power user into executing a crafted geostats query through a web browser can inject arbitrary Search Processing Language statements. Those injected statements run with the permissions of the second user, enabling the attacker to read any data that user can view—including stored credentials—and to alter or replace lookup files the user is permitted to modify. This results in a breach of confidentiality and integrity for all data accessible to the compromised user.

Affected Systems

Splunk Enterprise is the only impacted product. Versions earlier than 10.4.2, 10.2.6, 10.0.9, and 9.4.14 are vulnerable; all later releases contain the remediation.

Risk and Exploitability

The CVSS score of 5.4 indicates moderate severity. EPSS is not reported, and the vulnerability is not listed in the CISA KEV catalog, suggesting no widespread exploitation data yet. The likely attack vector requires a phishing or social‑engineering step to get the victim to launch the malicious geostats query from Splunk Web. Because the injected SPL runs with the victim’s privileges, the attack’s impact is tied to the victim’s role and permissions. Mitigating the risk hinges on applying the vendor patch or disabling the vulnerable Web interface if patching cannot be applied immediately.

Generated by OpenCVE AI on August 20, 2026 at 10:15 UTC.

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/10.4/install-splunk-enterprise-securely/disable-unnecessary-splunk-enterprise-components) and the [web.conf](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.0-configuration-file-reference/web.conf) configuration specification file for more information on turning off Splunk Web.


OpenCVE Recommended Actions

  • Upgrade Splunk Enterprise to the listed patched versions (10.4.2, 10.2.6, 10.0.9, or 9.4.14)
  • Disable Splunk Web via the web.conf configuration or other component removal to eliminate the vulnerable entry point
  • Monitor Splunk logs for unexpected geostats usage and conduct user‑role reviews to ensure minimal privilege exposure

Generated by OpenCVE AI on August 20, 2026 at 10:15 UTC.

Tracking

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Advisories

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History

Wed, 26 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 19:30:00 +0000

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

Wed, 19 Aug 2026 23:15:00 +0000

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

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, a user who does not hold the "admin" or "power" Splunk roles could inject arbitrary Search Processing Language (SPL) commands through the geostats command. The injected SPL runs with the permissions of another authenticated user after that user initiates the attacker-controlled geostats search in Splunk Web. The injected SPL could expose all relevant data available to the second user, including stored credentials, and modify lookup files that the second user has permission to change. The vulnerability is possible because the geostats command does not sufficiently validate input before Splunk Enterprise processes it. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The user who does not hold the "admin" or "power" Splunk roles should not be able to exploit the vulnerability at will. For more information see geostats (https://help.splunk.com/en/splunk-enterprise/spl-search-reference/10.0/search-commands/geostats) in the Splunk documentation.
Title SPL Injection through the geostats Command in Splunk Enterprise
Weaknesses CWE-77
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N'}


Subscriptions

Splunk Splunk Splunk Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-08-26T15:21:39.989Z

Reserved: 2026-08-19T12:02:03.627Z

Link: CVE-2026-76339

cve-icon Vulnrichment

Updated: 2026-08-26T14:49:36.409Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-19T22:17:18.490

Modified: 2026-08-26T16:16:40.483

Link: CVE-2026-76339

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T10:30:03Z

Weaknesses
  • CWE-77

    Improper Neutralization of Special Elements used in a Command ('Command Injection')