OCTOBER 15, 2026
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Case File

CVE-2026-76266

HIGH · CVSS 7.7 EPSS 0.12%

Source: NVD + CISA KEV + EPSS · Published 2026-10-07 · Last synced 2026-10-15

CyberRota Analysis

AI-Generated

Splunk Enterprise versions prior to 10.4.3, 10.2.7, 10.0.10, and 9.4.15 on Linux are vulnerable to a local privilege escalation flaw that allows a user with command execution capabilities to execute arbitrary operating-system commands with root privileges during package upgrades. This vulnerability arises from the package maintainer script's trust in existing installation content, which can be manipulated by a local user. Organizations using affected versions of Splunk Enterprise should prioritize patching to mitigate the risk of unauthorized command execution and potential system compromise.

CVE
CVE-2026-76266
Severity
HIGH
CVSS
7.7
EPSS
0.12%
Linux

Original NVD 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.

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