CVE-2026-76298 Splunk Enterprise - Privilege Escalation & Remote Code Execution

Splunk Enterprise < 10.4.4 and < 10.2.8 contains a privilege escalation caused by derivation of PostgreSQL sidecar database superuser password from search head cluster identifier in logs, letting non-admin users execute arbitrary OS commands as Splunk user, exploit requires non-admin user access.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
21 October 2026
Updated
22 October 2026
Weakness
CWE-321

Vendor fix

Upgrade to versions 10.4.4, 10.2.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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