Medium [CVE-2026-76263] Improper Access Control through the REST API in Splunk Enterprise
This medium-severity Splunk advisory covers CVE-2026-76263 affecting Splunk Enterprise.
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Summary
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 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 ( ) in the Splunk documentation.
- Splunk Enterprise 10.4 before 10.4.2
- Splunk Enterprise 10.2 before 10.2.6
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- 10.4.2
- 10.2.6
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation
Upgrade to a fixed release: 10.4.2, 10.2.6. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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