Authorization Bypass in the Data Management REST API in Splunk Enterprise

Description

In Splunk Enterprise versions below 10.4.4, a user that holds a role with the preview_data_management_pipeline capability or edit_data_management_pipeline_job capability could read or delete Data Management SPL2 preview jobs and results outside their ownership scope. The vulnerability is possible because the Data Management Representational State Transfer (REST) API verifies the required capability but does not verify that the requested preview job belongs to the requester. The affected Data Management REST API is available only when the Edge Processor feature is turned on. The Edge Processor feature is turned off by default. For more information see Set up a data management control plane (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/getting-started/set-up-a-data-management-control-plane) and Getting sample data for previewing data transformations (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/working-with-pipelines/getting-sample-data-for-previewing-data-transformations) in the Splunk documentation.

Scores

EPSS (exploitation in 30 days)

0.21% · top 88% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Weakness

• CWE-639: The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. (opens in a new tab)All about CWE-639 and its CVEs

Affected products

• Splunk · Splunk Enterprise

  • affected 10.4 – < 10.4.4

What to do

Solution: Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher.

Workaround: Turn off the SPL2 preview sidecar by setting `spl2_preview_enabled` to `false` in the `server.conf` configuration file if you do not use SPL2 previews for Edge Processor pipelines. Restart Splunk Enterprise for the change to take effect. For more information see the [server.conf configuration specification file](https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.4/configuration-file-reference/10.4.4-configuration-file-reference/server.conf) in the Splunk documentation.

References (1)

• https://advisory.splunk.com/advisories/SVD-2026-1007 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-76287](https://trackcve.app/badge/CVE-2026-76287.svg)](https://trackcve.app/cve/CVE-2026-76287)

Record last updated 23 Oct 2026, 15:08 UTC.