Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1 Web Manager Configuration restmap.conf access control

Summaryinfo

A vulnerability identified as very critical has been detected in Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1. Affected by this issue is some unknown functionality of the file restmap.conf of the component Web Manager Configuration. This manipulation causes access control. This vulnerability appears as CVE-2026-76315. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Splunk Enterprise up to 9.4.13/10.0.8/10.2.5/10.4.1 and classified as very critical. Affected by this vulnerability is some unknown functionality of the file restmap.conf of the component Web Manager Configuration. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 execute arbitrary code on the Splunk platform instance through Splunk Web Manager Configuration. The user could then access all relevant data and affect system integrity and availability on the Splunk platform instance. The vulnerability is possible because Splunk Web Manager Configuration evaluates manager configuration values, and the Representational State Transfer (REST) API path for manager configuration does not require the permission that normally controls manager configuration writes. 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) and restmap.conf (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/configuration-file-reference/10.2.0-configuration-file-reference/restmap.conf) in the Splunk documentation.

The advisory is shared at advisory.splunk.com. This vulnerability is known as CVE-2026-76315 since 08/19/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/20/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 9.4.14, 10.0.9, 10.2.6 or 10.4.2 eliminates this vulnerability.

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Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• Enterprise

Version

• 9.4.0
• 9.4.1
• 9.4.2
• 9.4.3
• 9.4.4
• 9.4.5
• 9.4.6
• 9.4.7
• 9.4.8
• 9.4.9
• 9.4.10
• 9.4.11
• 9.4.12
• 9.4.13
• 10.0.0
• 10.0.1
• 10.0.2
• 10.0.3
• 10.0.4
• 10.0.5
• 10.0.6
• 10.0.7
• 10.0.8
• 10.2.0
• 10.2.1
• 10.2.2
• 10.2.3
• 10.2.4
• 10.2.5
• 10.4.0
• 10.4.1

License

• commercial

CPE 2.3info

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• 🔒
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CPE 2.2info

• 🔒
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