CVE-2026-44512
Fixed in a distro release EPSS <1%CVSS 5.5
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.
Products: onnx
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | onnx | 1.22.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | nemo | 2.7.3-r11 |
| Debian 12 | onnx | no fix |
| Debian 13 | onnx | no fix |
| Debian 14 | onnx | no fix |
| Ubuntu 22.04 LTS | onnx | no fix |
| Ubuntu 25.10 | onnx | no fix |
| Ubuntu 26.04 LTS | onnx | no fix |
| Ubuntu 26.10 | onnx | no fix |
| Ubuntu Pro 24.04 LTS | onnx | no fix |