MEDIUM

CVE-2026-44512

CVSS v3

5.5

MEDIUM

EPSS Score

0.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

onnxPyPIfrom 1.9.0 · fixed in 1.22.0

Vendor advisories

CVE-2026-44512 Red Hat Product Security16 known affected
onnx: ONNX: Denial of Service via crafted untrusted models
rhoai/odh-mlserver-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · rhoai/odh-openvino-model-server-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9 as a component of Red Hat OpenShift AI (RHOAI)

Full record on NVD

Description

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.9.0 before 1.22.0, onnx.version_converter.convert_version() can dereference a null pointer in Upsample_6_7::adapt_upsample_6_7() in onnx/version_converter/adapters/upsample_6_7.h when processing an untrusted model with an Upsample node that has zero inputs, causing an unrecoverable denial of service. This issue is fixed in version 1.22.0.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: 2026-07-08
Last Modified: 2026-07-08
GitHub Advisory: GHSA-hwpq-hmq9-wj77

Frequently asked questions

What is CVE-2026-44512?

Is CVE-2026-44512 actively exploited?

Active exploitation of CVE-2026-44512 has not been confirmed. Its EPSS score was 0.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-44512?

CVE-2026-44512 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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