5.5Medium
CVE-2026-44512ONNX: Null Pointer Dereference in Upsample Version Converter Adapter (Zero Inputs)
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.
Weakness (CWE):
CWE-476
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| linuxfoundation | onnx | 1.9.0 – < 1.22.0 | |
| onnx | onnx | >= 1.9.0, < 1.22.0 |
References and patches
- https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj77 ExploitVendor Advisory
- https://github.com/onnx/onnx/pull/7813 Issue TrackingPatch
- https://github.com/onnx/onnx/commit/cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdf Patch
- https://github.com/onnx/onnx/releases/tag/v1.22.0 ProductRelease Notes
CPE matches (NVD) (1)
cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:*≥ 1.9.0 < 1.22.0