Vulnerability details

CVE-2026-76266

Splunk Enterprise

Local Privilege Escalation through Linux Package Upgrades in Splunk Enterprise

CVSS 3.1

7.7High

Official 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.

CVSS scores

Score	Version	Source	Vector
7.7High	3.1	CVEProject cvelistV5 (CNA) (cisco)	`CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
Splunk	Splunk Enterprise	10.0 ≤ v < 10.0.10	CVEProject cvelistV5 (CNA)
Splunk	Splunk Enterprise	10.2 ≤ v < 10.2.7	CVEProject cvelistV5 (CNA)
Splunk	Splunk Enterprise	10.4 ≤ v < 10.4.3	CVEProject cvelistV5 (CNA)
Splunk	Splunk Enterprise	9.4 ≤ v < 9.4.15	CVEProject cvelistV5 (CNA)

References and advisories

https://advisory.splunk.com/advisories/SVD-2026-1001

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-10-08
Last updated: 2026-10-09
State: Published
Assigner (CNA): cisco

Exploit prediction (EPSS)

0.15%

Probability of exploitation in 30 days

4.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (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.