CVE-2026-76266

Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise

HIGH
7.7
CVSS Score
Published: October 7, 2026 at 08:46 PM UTC
Updated: October 14, 2026 at 12:22 PM UTC
1 product affected across 1 vendorSplunk· also runs on 1 platform

Using Splunk Enterprise by Splunk?

Get instant alerts when new vulnerabilities affect Splunk Enterprise - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.0.0 ≤ v < 10.0.1010.2.0 ≤ v < 10.2.710.4.0 ≤ v < 10.4.39.4.0 ≤ v < 9.4.1510.010.210.49.4

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryMitigation
Source: cverecord
https://advisory.splunk.com/advisories/SVD-2026-1001

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHcisco
Vector?

Quick Info

StatusANALYZED
CWE
CWE-269

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card