CVE-2026-76388: The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. in Splunk Splunk Enterprise Security
CVE-2026-76388 is a high-severity vulnerability in Splunk Enterprise Security version 8.6. A user with the ess_analyst role can modify UEBA search macros that run with administrator permissions, gaining unauthorized access to sensitive data and system integrity. This occurs because analyst roles have write access to search macros that should be restricted to administrators.
AI Analysis
Technical Summary
In Splunk Enterprise Security versions below 8.6.1, the UEBA app metadata incorrectly grants the ess_analyst role write permissions to search macros that schedule searches running with administrator privileges. This misconfiguration allows users with the ess_analyst role to alter these macros, potentially accessing all relevant data and compromising system integrity. The vulnerability arises from improper permission settings on security-critical resources within the UEBA app, specifically the search macros used in scheduled searches.
Potential Impact
An attacker with the ess_analyst role can modify administrator-level scheduled searches, leading to unauthorized access to sensitive data and potential compromise of system integrity. The vulnerability does not affect availability but impacts confidentiality and integrity at a high level.
Mitigation Recommendations
No official patch or remediation level is provided in the available data. Patch status is not yet confirmed—check the vendor advisory for current remediation guidance. Until a fix is available, restrict the ess_analyst role permissions to prevent write access to UEBA search macros or limit assignment of this role to trusted users only.
CVE-2026-76388: The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. in Splunk Splunk Enterprise Security
Description
CVE-2026-76388 is a high-severity vulnerability in Splunk Enterprise Security version 8.6. A user with the ess_analyst role can modify UEBA search macros that run with administrator permissions, gaining unauthorized access to sensitive data and system integrity. This occurs because analyst roles have write access to search macros that should be restricted to administrators.
CVSS v3.1
Score 8.1high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
In Splunk Enterprise Security versions below 8.6.1, the UEBA app metadata incorrectly grants the ess_analyst role write permissions to search macros that schedule searches running with administrator privileges. This misconfiguration allows users with the ess_analyst role to alter these macros, potentially accessing all relevant data and compromising system integrity. The vulnerability arises from improper permission settings on security-critical resources within the UEBA app, specifically the search macros used in scheduled searches.
Potential Impact
An attacker with the ess_analyst role can modify administrator-level scheduled searches, leading to unauthorized access to sensitive data and potential compromise of system integrity. The vulnerability does not affect availability but impacts confidentiality and integrity at a high level.
Mitigation Recommendations
No official patch or remediation level is provided in the available data. Patch status is not yet confirmed—check the vendor advisory for current remediation guidance. Until a fix is available, restrict the ess_analyst role permissions to prevent write access to UEBA search macros or limit assignment of this role to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2026-08-19T12:02:03.631Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a862260acd9273b49a70471
Added to database: 08/19/2026, 21:38:40 UTC
Last enriched: 08/19/2026, 21:54:13 UTC
Last updated: 08/19/2026, 22:41:13 UTC
Views: 3
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