CVE-2026-20163

Remote Command Execution (RCE) through the '/splunkd/__upload/indexing/preview' REST endpoint in Splunk Enterprise

HIGH

7.2

CVSS Score

Published: March 11, 2026 at 04:18 PM UTC

Updated: June 17, 2026 at 10:17 AM UTC

2 products affected across 1 vendorSplunkSplunk Cloud Platform

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Severity

HIGH7.2

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

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.

Affected

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

Splunk · Splunk

95%

10.0 ≤ v < 10.0.410.0.0 ≤ v < 10.0.49.3 ≤ v < 9.3.109.3.0 ≤ v < 9.3.109.4 ≤ v < 9.4.99.4.0 ≤ v < 9.4.910.0 9.3 9.4

Affected range stops below 10.0.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.3.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.4.9, so it looks safe — our inference, not a vendor statement

Splunk Cloud Platform · Splunk

95%

10.0.2503 ≤ v < 10.0.2503.1210.1.2507 ≤ v < 10.1.2507.1610.2.2510 ≤ v < 10.2.2510.59.3.2411 ≤ v < 9.3.2411.12410.0.2503 10.1.2507 10.2.2510 9.3.2411

Affected range stops below 10.0.2503.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.1.2507.16, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.2.2510.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.3.2411.124, 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

https://advisory.splunk.com/advisories/SVD-2026-0302

References (1)

Vendor Advisory

Source: cverecord

https://advisory.splunk.com/advisories/SVD-2026-0302

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.2HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-77

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