What’s Vulnerable › Vulnerabilities
CVE-2026-76263: Improper Access Control through the REST API in Splunk Enterprise
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-19 · updated 2026-08-26
- Weakness: CWE-639
Description
In Splunk Enterprise versions below 10.4.2 and 10.2.6, a user who does not hold the "admin" or "power" Splunk roles could delete Splunk Processing Language version 2 (SPL2) modules belonging to other users through the data management orchestrator interface. The vulnerability does not affect Splunk Enterprise versions below 10.2. The broken object level authorization is possible because the data management orchestrator does not verify that the requesting user owns the target resources before it deletes the modules. For more information see Manage SPL2-based apps (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/meet-splunk-apps/manage-spl2-based-apps) in the Splunk documentation.
Affected products
- Splunk Enterprise: from 10.2.0 before 10.2.6; from 10.4.0 before 10.4.2 — fixed in 10.2.6, 10.4.2
How to fix
Upgrade to a fixed version: Splunk Enterprise 10.2.6, 10.4.2. Check the vendor advisory for mitigations.
References
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