In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15 on Linux, a local user who can run commands as the user account running Splunk Enterprise could cause an affected Linux package upgrade to run attacker-controlled operating-system commands with root privileges. The vulnerability is possible because the Linux package maintainer script trusts existing Splunk Enterprise installation content when it performs upgrade operations with root privileges. The vulnerability requires an affected Linux package upgrade to occur after the local user modifies the installation. The local user should not be able to elevate privileges at will.
History

Wed, 14 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Splunk splunk
CPEs cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Splunk splunk

Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Splunk
Splunk splunk Enterprise
Vendors & Products Splunk
Splunk splunk Enterprise

Wed, 07 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15 on Linux, a local user who can run commands as the user account running Splunk Enterprise could cause an affected Linux package upgrade to run attacker-controlled operating-system commands with root privileges. The vulnerability is possible because the Linux package maintainer script trusts existing Splunk Enterprise installation content when it performs upgrade operations with root privileges. The vulnerability requires an affected Linux package upgrade to occur after the local user modifies the installation. The local user should not be able to elevate privileges at will.
Title Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-10-07T20:46:29.794Z

Updated: 2026-10-09T03:55:28.884Z

Reserved: 2026-08-19T12:02:03.620Z

Link: CVE-2026-76266

cve-icon Vulnrichment

Updated: 2026-10-08T18:01:49.784Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-07T21:17:17.310

Modified: 2026-10-14T12:22:06.520

Link: CVE-2026-76266

cve-icon Redhat

No data.