Splunk Enterprise is widely deployed across organizations; this RCE (by non-admin users) can expose data and compromise infrastructure enterprise-wide.
CVE-2026-76313
Splunk Enterprise RCE via malicious knowledge-bundle upload by non-admin users.
Is CVE-2026-76313 being exploited?
Not confirmed. CVE-2026-76313 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 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-76313?
CVE-2026-76313 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-2026-76313?
Yes. A fix has been recorded for CVE-2026-76313. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-76313 affect?
CVE-2026-76313 affects Splunk Enterprise < 10.4.2, Splunk Enterprise < 10.2.6, Splunk Enterprise < 10.0.9, Splunk Enterprise < 9.4.14, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-76313?
Upgrade to fixed Splunk releases and restrict REST API access/role capabilities.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote Code Execution via REST API knowledge-bundle upload; allows data access, integrity/availability compromise and lateral movement.
Immediate action required
- affected>= 10.4 and < 10.4.2
- affected>= 10.2 and < 10.2.6
- affected>= 10.0 and < 10.0.9
- affected>= 9.4 and < 9.4.14
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.