CVE-2026-76266 (GCVE-0-2026-76266)

Vulnerability from cvelistv5 – Published: 2026-10-07 20:46 – Updated: 2026-10-09 03:55
VLAI
Title
Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise
Summary
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.
Severity
7.7 (High)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 00:00 UTC
CWE
  • CWE-269 - The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 443 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk Enterprise Affected: 10.4 , < 10.4.3 (custom)
Affected: 10.2 , < 10.2.7 (custom)
Affected: 10.0 , < 10.0.10 (custom)
Affected: 9.4 , < 9.4.15 (custom)
guessed Create a notification for this product.
Date Public
2026-10-07 00:00
Credits
Jean-Michel Remi Boudreau
Show details on NVD website
To clipboard 

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