CVE-2026-115920: Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From …
- Occurred
- Oct 26, 2026
- Published
- Oct 26, 2026
- Source
- NVD CVE
Summary
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.2.1 until 1.22.0, ConvTranspose shape inference processes a weight tensor with fewer than three dimensions without a kernel_shape attribute by deriving an empty effective_kernel_shape and indexing it for the input's spatial dimensions. The flaw affects convTransposeShapeInference_opset11() and the current inference path, and an untrusted model that can pass onnx.checker.check_model() can crash onnx.shape_inference.infer_shapes(), causing denial of service without demonstrated confidentiality or integrity impact. This issue is fixed in version 1.22.0.
Tags
- CVE
- CVE-2026-115920
- cvss:MEDIUM
Classification
Rationale: CVE describes a denial of service vulnerability in ONNX library shape inference, not a direct AI safety incident.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8