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.
Published: 2026-02-18
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Sensitive Information Disclosure
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 20 Feb 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Splunk splunk
CPEs cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
Vendors & Products Splunk splunk

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
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'}


Subscriptions

Splunk Splunk Splunk Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-02-26T14:44:16.462Z

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

Link: CVE-2026-20138

cve-icon Vulnrichment

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

cve-icon NVD

Status : Analyzed

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

Modified: 2026-02-20T13:50:05.057

Link: CVE-2026-20138

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T18:45:25Z

Weaknesses