Splunk Enterprise is widely deployed; this flaw allows non-admin users to obtain DB superuser creds and execute OS commands on search heads — high-impact for enterprises.
CVE-2026-76298
Non-admin can derive DB superuser password and run OS commands on Splunk search heads
Is CVE-2026-76298 being exploited?
Not confirmed. CVE-2026-76298 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-76298?
CVE-2026-76298 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-76298?
Yes. A fix has been recorded for CVE-2026-76298. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-76298 affect?
CVE-2026-76298 affects Splunk Enterprise <10.4.4, Splunk Enterprise <10.2.8, Search Head Cluster members, PostgreSQL sidecar. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-76298?
Upgrade to Splunk 10.4.4 or 10.2.8+, rotate sidecar DB creds, restrict roles and audit access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Non-admin users can recover PostgreSQL sidecar superuser password and execute OS commands as the Splunk service account on search head cluster members.
Immediate action required
- affected>= 10.4 and < 10.4.4
- affected>= 10.2 and < 10.2.8
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.