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NTAP-20260930-0017 — CVE-2026-40179 Prometheus Vulnerability in NetApp Products

Published 2026-09-30 · Updated 2026-09-30 · Status: Interim · Exploitation: Public · Severity: MEDIUM 6.1 · ONTAP affected: Yes

Official advisory: NTAP-20260930-0017 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Astra Control · NetApp Console / BlueXP · ONTAP · Other NetApp products | ONTAP-relevant | highest CVSS: 6.1

CVEs in this advisory

CVE-2026-40179 — MEDIUM · CVSS 6.1 · site index

What the CVE records say

CVE-2026-40179 — Prometheus is an open-source monitoring system and time series database. Versions 3.0 through 3.5.1 and 3.6.0 through 3.11.1 have stored cross-site scripting vulnerabilities in multiple components of the Prometheus web UI where metric names and label values are injected into innerHTML without escaping. In both the Mantine UI and old React UI, chart tooltips on the Graph page render metric names containing HTML/JavaScript without sanitization. In the old React UI, the Metric Explorer fuzzy search results use dangerouslySetInnerHTML without escaping, and heatmap cell tooltips interpolate le label values without sanitization. With Prometheus v3.x defaulting to UTF-8 metric and label name validation, characters like <, >, and " are now valid in metric names and labels. An attacker who can inject metrics via a compromised scrape target, remote write, or OTLP receiver endpoint can execute arbitrary JavaScript in the browser of any Prometheus user who views the metric in the Graph UI, potentially enabling configuration exfiltration, data deletion, or Prometheus shutdown depending on enabled flags. This issue has been fixed in versions 3.5.2 and 3.11.2. If developers are unable to immediately update, the following workarounds are recommended: ensure that the remote write receiver (--web.enable-remote-write-receiver) and the OTLP receiver (--web.enable-otlp-receiver) are not exposed to untrusted sources; verify that all scrape targets are trusted and not under attacker control; avoid enabling admin or mutating API endpoints (e.g., --web.enable-admin-api or --web.enable-lifecycle) in environments where untrusted data may be ingested; and refrain from clicking untrusted links, particularly those containing functions such as label_replace, as they may generate poisoned label names and values.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information or addition or modification of data.

Affected products

Astra Control Provisioner
NetApp Console Agent Container (alertmanager)
NetApp Console Agent Container (node-exporter)
NetApp Console Agent Container (prometheus)
ONTAP tools for VMware vSphere 10
Trident
Trident Autosupport

References

https://github.com/prometheus/prometheus/security/advisories/GHSA-vffh-x6r8-xx99 ↗

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.