Sensitive Information Disclosure through Log Files in Splunk Enterprise

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-20239
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-20 18:16:26 UTC
Updated2026-05-21 19:42:21 UTC
DescriptionIn Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.000140000 probability, percentile 0.026220000 (date 2026-05-27)

Problem Types: CWE-532 | CWE-532 Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Splunk Splunk All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Splunk Splunk Enterprise affected 10.2 10.2.2 custom Not specified
CNA Splunk Splunk Enterprise affected 10.0 10.0.5 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.3.2512 10.3.2512.8 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.2.2510 10.2.2510.11 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.1.2507 10.1.2507.21 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.0.2503 10.0.2503.13 custom Not specified

References

ReferenceSourceLinkTags
advisory.splunk.com/advisories/SVD-2026-0503 [email protected] advisory.splunk.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Charlie Huggard, Splunk (en)

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