NULL Pointer Dereference Affecting onnx package, versions [1.9.0,]


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CONAN-ONNX-19272140
  • published27 Aug 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?

A fix was pushed into the master branch but not yet published.

Overview

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