CVE-2026-76388 Privilege Escalation through Search Macro Permissions in Splunk Enterprise Security
An analyst can modify UEBA search macros to execute with admin privileges, enabling data access and system integrity compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76388?
CVE-2026-76388 is a high-severity vulnerability in Splunk Enterprise Security, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Splunk Enterprise Security versions below 8.6.1, a user who holds the ess_analyst Splunk Enterprise Security role could change User and Entity Behavior Analytics (UEBA) search macros that scheduled searches run with administrator permissions, allowing for access to all relevant data and system integrity through those searches. The vulnerability is possible because the UEBA app metadata grants analyst roles write access to search macros that should be writable only by administrator roles. For more information see Users and roles for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/install/8.4/installation/users-and-roles-for-splunk-enterprise-security) and Roles and knowledge objects in UEBA for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/administer/8.5/user-and-entity-behavior-analytics/roles-and-knowledge-objects-in-ueba-for-splunk-enterprise-security) in the Splunk documentation.
Weakness: CWE-732
Which versions are affected by CVE-2026-76388?
It affects 1 product.
Products include Splunk Enterprise Security.
How do I fix CVE-2026-76388?
No fix has been published for CVE-2026-76388 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76388 being exploited?
There is no known exploitation of CVE-2026-76388 in the wild and no public exploit code.
Other vulnerabilities in Splunk Enterprise Security
- CVE-2026-76387 SPL Injection through the REST API in Splunk Enterprise Security
- CVE-2024-22165 Denial of Service in Splunk Enterprise Security of the Investigations manager through Investigation creation
- CVE-2024-22164 Denial of Service of an Investigation in Splunk Enterprise Security through Investigation attachments
Sources
Also known as GHSA-hj4g-r7xm-5vg9.