CVE-2026-76266

Published Oct 7, 2026

Last updated 7 days ago

Overview

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.
Source
psirt@cisco.com
NVD status
Analyzed
Products
splunk

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.7
Impact score
6
Exploitability score
1.1
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Severity
HIGH

Weaknesses

psirt@cisco.com
CWE-269

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.