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NTAP-20261028-0018 — CVE-2026-91409 Java SE Vulnerability in NetApp Products

Published 2026-10-28 · Updated 2026-10-28 · Status: Interim · Exploitation: Public · Severity: LOW 3.7 · ONTAP affected: Yes

Official advisory: NTAP-20261028-0018 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Other NetApp products · Active IQ Unified Manager · Brocade SAN firmware · E-Series / SANtricity · NetApp Console / BlueXP · SolidFire / NetApp HCI · ONTAP · OnCommand family · SnapCenter | ONTAP-relevant | highest CVSS: 3.7

CVEs in this advisory

CVE-2026-91409 — LOW · CVSS 3.7 · site index

What the CVE records say

CVE-2026-91409 — Vulnerability in Oracle Java SE (component: Networking). The supported version that is affected is Oracle Java SE: 27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Impact

Successful exploitation of this vulnerability could lead to unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE.

Affected products

AI Data Engine (AIDE)
Active IQ Unified Manager for Microsoft Windows
Active IQ Unified Manager for VMware vSphere
Brocade SAN Navigator (SANnav)
Data Infrastructure Insights Acquisition Unit
E-Series SANtricity OS Controller Software
E-Series SANtricity Unified Manager and Web Services Proxy
NetApp Console Agent
NetApp SolidFire & HCI Management Node
ONTAP tools for VMware vSphere 10
OnCommand Insight
SANtricity Storage Plugin for vCenter

References

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.