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NTAP-20261002-0020 — CVE-2026-21711 Node.js Vulnerability in NetApp Products

Published 2026-10-02 · Updated 2026-10-02 · Status: Interim · Exploitation: Public · Severity: MEDIUM 5.3 · ONTAP affected: Yes

Official advisory: NTAP-20261002-0020 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Brocade SAN firmware · NetApp Console / BlueXP · E-Series / SANtricity · ONTAP | ONTAP-relevant | highest CVSS: 5.3

CVEs in this advisory

CVE-2026-21711 — MEDIUM · CVSS 5.3 · site index

What the CVE records say

CVE-2026-21711 — A flaw in Node.js Permission Model network enforcement leaves Unix Domain Socket (UDS) server operations without the required permission checks, while all comparable network paths correctly enforce them. As a result, code running under `--permission` without `--allow-net` can create and expose local IPC endpoints, allowing communication with other processes on the same host outside of the intended network restriction boundary. This vulnerability affects Node.js **25.x** processes using the Permission Model where `--allow-net` is intentionally omitted to restrict network access. Note that `--allow-net` is currently an experimental feature.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data or Denial of Service (DoS).

Affected products

Brocade SAN Navigator (SANnav)
NetApp Console Agent Container (audit)
NetApp Console Agent Container (e-series)
NetApp Console Agent Container (ontap-proxy)
NetApp Console Agent Container (prometheus)
NetApp Console Agent Container (protocol-proxy)
NetApp Console Agent Container (tiering)
NetApp Console Agent OVA

References

https://nodejs.org/en/blog/vulnerability/march-2026-security-releases ↗

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.