Fluid Attacks Database

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
pypi	onnx	>=1.9.0 <1.22.0	1.22.0
debian 12	onnx	=1.12.0-2 \|\| =1.13.1-1 \|\| =1.13.1-2 \|\| =1.13.1-3 \|\| =1.14.1-1 \|\| =1.14.1-2 \|\| =1.14.1-2.1 \|\| =1.14.1-2.1~exp1 \|\| =1.16.1-1 \|\| =1.16.2-1 \|\| =1.17.0-1 \|\| =1.17.0-2 \|\| =1.17.0-3 \|\| =1.19.1-1~exp1 \|\| =1.20.0-1 \|\| =1.20.0-1~exp1 \|\| =1.20.0-3 \|\| =1.20.0-4 \|\| =1.20.0-5 \|\| =1.20.0-6 \|\| =1.21.0-1	-
debian 13	onnx	=1.17.0-3 \|\| =1.19.1-1~exp1 \|\| =1.20.0-1 \|\| =1.20.0-1~exp1 \|\| =1.20.0-3 \|\| =1.20.0-4 \|\| =1.20.0-5 \|\| =1.20.0-6 \|\| =1.21.0-1	-
debian 14	onnx	=1.17.0-3 \|\| =1.19.1-1~exp1 \|\| =1.20.0-1 \|\| =1.20.0-1~exp1 \|\| =1.20.0-3 \|\| =1.20.0-4 \|\| =1.20.0-5 \|\| =1.20.0-6 \|\| =1.21.0-1	-

Aliases

1. CVE-2026-445122. NVD-2026-445123. OSV-2026-445124. OSV-DEBIAN-2026-445125. GHSA-hwpq-hmq9-wj776. GCVE-2026-445127. SECURITY-TRACKER-CVE-2026-44512

References

1. https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj772. https://github.com/onnx/onnx/pull/79163. https://github.com/onnx/onnx/releases/tag/v1.22.0

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