Improper Authorization through the REST API in Splunk Enterprise
Published Aug 19, 2026
8.8
HIGHCVSS 3.1
EPSS 0.42%
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 create or modify a scripted lookup through generic configuration endpoints and run an installed lookup script with the permissions of the user account running Splunk Enterprise, which could allow for access to all relevant data and affect system integrity and availability. The vulnerability is possible because the generic transforms configuration endpoints do not enforce the capabilities required to create or edit external lookup definitions. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) and limits.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.2-configuration-file-reference/limits.conf) in the Splunk documentation.
Affected products
-
- Version 10.0StatusaffectedConstraints<10.0.9
- Version 10.2StatusaffectedConstraints<10.2.6
- Version 10.4StatusaffectedConstraints<10.4.2
- Version 9.4StatusaffectedConstraints<9.4.14
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Splunk | Splunk Enterprise | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.
After upgrading, set `scripted_lookup_raw_write_enforcement = block` in the `limits.conf` configuration file under `[lookup]`, and then restart Splunk Enterprise.
References (1)
- https://advisory.splunk.com/advisories/SVD-2026-0801 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-0801 | Vendor Advisory |
Change history (0)
No recorded changes yet.