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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| onnx | onnx | >= 1.9.0, < 1.22.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | onnx | No fix yet | — |
| Debian 13 | onnx | No fix yet | — |
| Debian 12 | onnx | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | onnx | No fix yet | — |
| Ubuntu 26.04 LTS | onnx | No fix yet | — |
| Ubuntu 25.10 | onnx | No fix yet | — |
| Ubuntu 22.04 LTS | onnx | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | onnx | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | onnxruntime | 1.31.0-1.1 | openSUSE-SU-2026:12274-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | onnx | >= 1.9.0, < 1.22.0 | 1.22.0 | GHSA-hwpq-hmq9-wj77 |
Advisories 1
- openSUSE-SU-2026:12274-1 libonnxruntime1-1.31.0-1.1 on GA media SUSE / openSUSE Security Updates · Oct 27, 2026