SB2026031318 - Authenticated code execution in Splunk Enterprise



SB2026031318 - Authenticated code execution in Splunk Enterprise

Published: March 13, 2026

Security Bulletin ID SB2026031318
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Command Injection (CVE-ID: CVE-2026-20163)

The vulnerability allows a remote user to execute arbitrary commands on the system.

The vulnerability exists due to insufficient input validation when handling the "unarchive_cmd" parameter for the "/splunkd/__upload/indexing/preview" REST endpoint. A remote privileged user with "edit_cmd" capability can pass specially crafted data to the application and execute arbitrary commands.


Remediation

Install update from vendor's website.