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NTAP-20260930-0019 — CVE-2026-42154 Prometheus Vulnerability in NetApp Products

Published 2026-09-30 · Updated 2026-09-30 · Status: Interim · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20260930-0019 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: 7.5

CVEs in this advisory

CVE-2026-42154 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2026-42154 — Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

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-8rm2-7qqf-34qm ↗

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.