CVE-2026-76273

Improper Input Validation through the collect Command in Splunk Enterprise

Severity
Medium 4.3
CVSS 3.1
Remote, needs privileges or user interaction what this means
Exploited
Not listed
EPSS
—
Discovered by
Not disclosed
Published
Oct 7, 2026
Assigned by cisco

Description

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, a user that holds a role with the run_collect capability could use the collect Search Processing Language (SPL) command to add attacker-controlled content to system-level messages on the Splunk platform instance. The vulnerability is possible because the collect command does not validate the index name before processing the value. For more information see collect (https://help.splunk.com/en/splunk-enterprise/search/spl-search-reference/10.4/search-commands/collect), Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities), and System endpoint descriptions (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.4/system-endpoints/system-endpoint-descriptions) in the Splunk documentation.

Weakness: CWE-20

Affected products

Vendor Product Category Matched by
Cisco Splunk Enterprise SIEM & Log Management cna-assigner
Vendor-reported products (1)
  • Splunk · Splunk Enterprise

Credit

Anton (therceman)

Vendor remediation

Upgrade Splunk Enterprise to versions 10.4.3, 10.2.7, 10.0.10, and 9.4.15, or higher.

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