CVE-2026-76263

Improper Access Control through the REST API in Splunk Enterprise

State
Published
Severity
5.4 Medium
Published
Aug 19, 2026
Updated
Aug 26, 2026
Reserved
Aug 19, 2026

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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.

Scores

CVSSScoreVectorSource
3.15.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Lcisco

Weaknesses

  • 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.

Affected Products

ProductVersions
Splunk EnterpriseSplunk
  • 10.4 to before 10.4.2Affected
  • 10.2 to before 10.2.6Affected

References

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