CVE-2026-44512

Summary

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.

Affected Software

VendorProductVersion RangeStatus
onnxonnx>= 1.9.0, < 1.22.0affected

Weaknesses

  • CWE-476: CWE-476: NULL Pointer Dereference

References