{"id":"CVE-2026-76266","published":"2026-10-07T21:17:17.310","lastModified":"2026-10-09T04:18:12.570","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.","cvssScore":7.7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","cwes":["CWE-269"],"vendors":[],"products":[],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-1001","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A local user with command execution privileges on a Splunk Enterprise system can manipulate upgrade scripts to execute arbitrary commands as root during package upgrades. This allows privilege escalation from the Splunk user to root through trusted installation content during upgrade operations.","exploitability":"Exploitation requires a local user who can run commands as the Splunk user account, followed by an upgrade operation that triggers the vulnerable package maintainer script, making it moderately difficult but not highly complex to achieve.","blast_radius":"If exploited, this vulnerability could allow attackers to gain full root access to Splunk servers, potentially compromising all system resources and data accessible to the Splunk installation, with impact extending to other services running on the same host.","remediation":"Upgrade to Splunk Enterprise 10.4.3, 10.2.7, 10.0.10, or 9.4.15 immediately to remediate this privilege escalation vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["privilege-escalation","local-attack","package-management"],"model":"garnet-coder","analyzedAt":"2026-10-15T08:59:26.385Z"}}