Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Onnx | >= 1.9.0, < 1.22.0 |
Related Weaknesses (CWE)
References
- https://github.com/onnx/onnx/commit/cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdfPatch
- https://github.com/onnx/onnx/pull/7813Issue TrackingPatch
- https://github.com/onnx/onnx/releases/tag/v1.22.0ProductRelease Notes
- https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj77ExploitVendor Advisory
- https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj77ExploitVendor Advisory
FAQ
What is CVE-2026-44512?
CVE-2026-44512 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 Upsa...
How severe is CVE-2026-44512?
CVE-2026-44512 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44512?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Onnx.