CVE-2026-20138 - Vulnerability Details - OpenCVE

In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.9, and 9.2.11, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the Splunk `_internal` index could view the `integrationKey`, `secretKey`, and `appSecretKey` secrets, generated by [Duo Two-Factor Authentication for Splunk Enterprise](https://duo.com/docs/splunk), in plain text.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Splunk	Splunk Enterprise

No data.

No data.

References

Link	Providers
https://advisory.splunk.com/advisories/SVD-2026-0203

History

Thu, 19 Feb 2026 10:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Splunk Splunk splunk Enterprise
Vendors & Products		Splunk Splunk splunk Enterprise

Wed, 18 Feb 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 18 Feb 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.9, and 9.2.11, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the Splunk `_internal` index could view the `integrationKey`, `secretKey`, and `appSecretKey` secrets, generated by [Duo Two-Factor Authentication for Splunk Enterprise](https://duo.com/docs/splunk), in plain text.
Title		Sensitive Information Disclosure in "_internal" index in Splunk Enterprise
Weaknesses		CWE-532
References		https://advisory.splunk.com/advisories/SVD-2026-0203
Metrics		cvssV3_1 `{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-02-18T16:45:33.870Z

Updated: 2026-02-19T04:55:46.886Z

Reserved: 2025-10-08T11:59:15.381Z

Link: CVE-2026-20138

Vulnrichment

Updated: 2026-02-18T17:43:59.754Z

NVD

Status : Awaiting Analysis

Published: 2026-02-18T18:24:23.427

Modified: 2026-02-19T15:53:02.850

Link: CVE-2026-20138

Redhat

No data.

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