High severity · published Mar 11, 2026
CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__upload/indexing/preview' REST endpoint in Splunk Enterprise
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
In Splunk Enterprise versions below 10.2.0, 10.0.4, 9.4.9, and 9.3.10, and Splunk Cloud Platform versions below 10.2.2510.5, 10.0.2503.12, 10.1.2507.16, and 9.3.2411.124, a user who holds a role that contains the high-privilege capability `edit_cmd` could execute arbitrary shell commands using the `unarchive_cmd` parameter for the `/splunkd/__upload/indexing/preview` REST endpoint.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Splunk Cloud Platform · Splunk
10.2.2510 before 10.2.2510.5; 10.0.2503 before 10.0.2503.12; 10.1.2507 before 10.1.2507.16; 9.3.2411 before 9.3.2411.124 · source: vendor, NVD
SE
Splunk Enterprise · Splunk
10.0 before 10.0.4; 9.4 before 9.4.9; 9.3 before 9.3.10 · source: vendor
SP
Splunk · Splunk
9.3.0 before 9.3.10; 9.4.0 before 9.4.9; 10.0.0 before 10.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20163
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20163
Vendor Advisory
https://advisory.splunk.com/advisories/SVD-2026-0302
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