CVE-2026-20142: medium-severity vulnerability in Splunk Enterprise
Sensitive Information Disclosure in "_internal" index in Splunk Enterprise
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.3%
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 RSA `accessKey` value from the [<u>Authentication.conf</u> ](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/configuration-file-reference/10.2.0-configuration-file-reference/authentication.conf)file, in plain text.
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Splunk · Splunk EnterpriseRelated CVEs — Splunk Enterprise
In the same product, most dangerous first.
CVE-2026-20253CRITICALUnauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk EnterpriseEPSS 96.9%KEVCVE-2023-46214HIGHRemote code execution (RCE) in Splunk Enterprise through Insecure XML ParsingEPSS 89.2%CVE-2023-32707HIGH‘edit_user’ Capability Privilege EscalationEPSS 78.7%CVE-2022-43568HIGHReflected Cross-Site Scripting via the radio template in Splunk EnterpriseEPSS 42.8%CVE-2026-20251HIGHRemote Code Execution through Deserialization of Untrusted Data in Splunk Secure GatewayEPSS 32.2%CVE-2025-20297MEDIUMReflected Cross-Site Scripting (XSS) on Splunk Enterprise through dashboard PDF generation componentEPSS 31.2%