High 7.1Published Apr 15, 2026

CVE-2026-20204In 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…

Updated under an hour ago (2026-10-19 09:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In 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.

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-377
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

splunk splunk splunk:splunk	from 9.3.0 before 9.3.11; from 9.4.0 before 9.4.10; from 10.0.0 before 10.0.5; 10.2.0	NVD
splunk splunk_cloud_platform splunk:splunk_cloud_platform	from 9.3.2411 before 9.3.2411.127; from 10.0.2503 before 10.0.2503.13; from 10.1.2507 before 10.1.2507.19; from 10.2.2510 before 10.2.2510.9; from 10.3.2512 before 10.3.2512.5	NVD

References

https://advisory.splunk.com/advisories/SVD-2026-0403vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.