NULL Pointer Dereference Affecting onnx package, versions [1.9.0,1.22.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (9th percentile)

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  • Snyk IDSNYK-PYTHON-ONNX-17878694
  • published7 Jul 2026
  • disclosed7 Jul 2026
  • creditMinicoAI

Introduced: 7 Jul 2026

CVE-2026-44512  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade onnx to version 1.22.0 or higher.

Overview

onnx is an Open Neural Network Exchange

Affected versions of this package are vulnerable to NULL Pointer Dereference in the adapt_upsample_6_7 function when processing a model containing an Upsample node with zero inputs. An attacker can cause a crash and denial of service by submitting a specially crafted model file that triggers a null pointer dereference during version conversion.

CVSS Base Scores

version 4.0
version 3.1