Unauthenticated remote auth bypass in widely used Nutanix Prism Element allows full cluster takeover and data destruction; enterprise-impacting infrastructure.
CVE-2026-84731
Unauthenticated auth bypass in Nutanix Prism Element enables full cluster takeover.
Is CVE-2026-84731 being exploited?
Not confirmed. CVE-2026-84731 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 1.3% probability of exploitation in the next 30 days.
How severe is CVE-2026-84731?
CVE-2026-84731 is rated Critical with a CVSS score of 9.3. 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-2026-84731?
Yes. A fix has been recorded for CVE-2026-84731. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-84731 affect?
CVE-2026-84731 affects Nutanix Prism Element (AOS Prism), Nutanix AOS, Controller VMs (CVMs). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84731?
Apply Nutanix advisory patch immediately; isolate management plane and rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated bypass issues JSESSIONID/JWT granting admin rights; attacker can execute root commands on all CVMs, destroy clusters, and access VM memory/disks.
Immediate action required
- affected< 7.3.1.18
- affected>= 7.5 and < 7.5.2
- affected>= 7.6 and < 7.6.0.8
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.