Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise
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.
CVE-2026-76266
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-76266
Splunk Enterprise
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Splunk",
"product": "Splunk Enterprise",
"versions": [
{
"status": "affected",
"version": "10.4",
"lessThan": "10.4.3",
"versionType": "custom"
},
{
"status": "affected",
"version": "10.2",
"lessThan": "10.2.7",
"versionType": "custom"
},
{
"status": "affected",
"version": "10.0",
"lessThan": "10.0.10",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.4",
"lessThan": "9.4.15",
"versionType": "custom"
}
]
}
]- Related CVEs
- CVE-2026-76266
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #16183 · Revision 1
- Added to Heist Feed
- Publisher date