Improper Handling and Insufficient Isolation of Specific Temporary Files in Splunk Enterprise

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-20204
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-15 16:16:34 UTC
Updated2026-04-17 19:04:00 UTC
DescriptionIn Splunk Enterprise versions below 10.2.1, 10.0.5, 9.4.10, and 9.3.11, and Splunk Cloud Platform versions below 10.4.2603.0, 10.3.2512.5, 10.2.2510.9, 10.1.2507.19, 10.0.2503.13, and 9.3.2411.127, a low-privileged user that does not hold the `admin` or `power` Splunk roles could potentially perform a Remote Code Execution (RCE) by uploading a malicious file to the `$SPLUNK_HOME/var/run/splunk/apptemp` directory due to improper handling and insufficient isolation of temporary files within the `apptemp` directory.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

EPSS: 0.001310000 probability, percentile 0.325800000 (date 2026-04-20)

Problem Types: CWE-377 | CWE-377 Creating and using insecure temporary files can leave application and system data vulnerable to attack.

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 10.2.1 custom Not specified
CNA Splunk Splunk Enterprise affected 10.0 10.0.5 custom Not specified
CNA Splunk Splunk Enterprise affected 9.4 9.4.10 custom Not specified
CNA Splunk Splunk Enterprise affected 9.3 9.3.11 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.4.2603 Not Affected custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.3.2512 10.3.2512.5 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.2.2510 10.2.2510.9 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.1.2507 10.1.2507.19 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.0.2503 10.0.2503.13 custom Not specified
CNA Splunk Splunk Cloud Platform affected 9.3.2411 9.3.2411.127 custom Not specified

References

ReferenceSourceLinkTags
advisory.splunk.com/advisories/SVD-2026-0403 [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: Gabriel Nitu, Splunk (en)

© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report