{"schemaVersion":3,"id":"CVE-2026-44512","aliases":["GHSA-hwpq-hmq9-wj77","PYSEC-2026-2689","UBUNTU-CVE-2026-44512","DEBIAN-CVE-2026-44512","CGA-p82p-mg6x-m9jv"],"status":"published","duplicateOf":null,"title":null,"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. 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