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CVE-2026-20142

Sensitive Information Disclosure in "_internal" index in Splunk Enterprise

MEDIUM
4.9
CVSS Score
Published: February 18, 2026 at 04:45 PM UTC
Updated: June 17, 2026 at 10:17 AM UTC
1 product affected across 1 vendorSplunk

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Splunk· Splunk
95%
10.0 ≤ v < 10.0.210.0.0 ≤ v < 10.0.29.2 ≤ v < 9.2.119.2.0 ≤ v < 9.2.119.3 ≤ v < 9.3.99.3.0 ≤ v < 9.3.99.4 ≤ v < 9.4.79.4.0 ≤ v < 9.4.710.09.29.39.4
Affected range stops below 10.0.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.2.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.3.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://advisory.splunk.com/advisories/SVD-2026-0207

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.9MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-532

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