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Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2026-33186: gRPC-Go Vulnerability in NetApp Products

Not in the CISA KEV catalog. Critical advisory severity (CVSS 9.1, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2026-33186 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Critical
CVSS base score
9.1 (NetApp), 9.1 (Red Hat)
Weakness
CWE-551
Fixed releases
  • NetApp: ONTAP tools for VMware vSphere 10: 10.5P2
  • Red Hat: RHSA-2026:27893
Vendor advisories
2 from NetApp, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-33186; bulletin-wide values are not repeated here.

Is CVE-2026-33186 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-33186 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-33186?

Upgrade to a fixed release named by the vendor:

  • NetApp: ONTAP tools for VMware vSphere 10: 10.5P2
  • Red Hat: RHSA-2026:27893
  • Update affected NetApp products to a fixed release: ONTAP tools for VMware vSphere 10: 10.5P2. (NetApp)
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:27893 (`sudo dnf update` / `yum update`). (Red Hat)

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Alert me about NetApp

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-33186] gRPC-Go Vulnerability in NetApp Products

    NTAP-20260422-0005Source published Source updated

    Multiple NetApp products incorporate gRPC-Go. gRPC-Go versions prior to 1.79.3 are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information or addition or modification of data. Affected products: ONTAP tools for VMware vSphere 10. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    • ONTAP tools for VMware vSphere 10
    Source-reported affected versions
    • 1.79.3
    Source-reported fixed versions
    • ONTAP tools for VMware vSphere 10: 10.5P2
    Mitigation guidance
    • Update affected NetApp products to a fixed release: ONTAP tools for VMware vSphere 10: 10.5P2.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-33186] Authorization bypass due to improper HTTP/2 path validation

    CVE-2026-33186Source published

    Authorization bypass due to improper HTTP/2 path validation. Red Hat rates this important (CVSS 9.1). Weakness: CWE-551. Affected package(s): rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9:1780078429, odf4/odf-csi-addons-sidecar-rhel9:1781550957, rhtas/trillian-logserver-rhel9:1776243434, openshift4/ose-cluster-olm-rhel9-operator:1779787336, rhdh/rhdh-rhel9-operator:1774544220, openshift4/ose-csi-driver-nfs-rhel9:1778242571. Resolved in Red Hat advisory RHSA-2026:27893 — update the affected packages (`sudo dnf update`).

    Affected products in this advisory
    • Red Hat OpenShift Container Platform 4.16
    • Red Hat OpenShift Container Platform 4.17
    • Red Hat OpenShift Container Platform 4.18
    • Red Hat Satellite 6.16 for RHEL 8

    134 more entries in the full advisory.

    Source-reported affected versions
    • rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9:1780078429
    • odf4/odf-csi-addons-sidecar-rhel9:1781550957
    • rhtas/trillian-logserver-rhel9:1776243434
    • openshift4/ose-cluster-olm-rhel9-operator:1779787336

    8 more entries in the full advisory.

    Source-reported fixed versions
    • RHSA-2026:27893
    Mitigation guidance
    • Update the affected package(s) to the fixed version shipped in RHSA-2026:27893 (`sudo dnf update` / `yum update`).
    Full advisory and evidenceOpen source bulletin

More NetApp advisories

All NetApp advisories

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