{"schema":"threatline.record/2","record":{"id":"CVE-2026-115920","aliases":["GHSA-6pwm-x34p-fvj2"],"summary":"ONNX: Out-of-bounds read in ConvTranspose shape inference via undersized weight rank","details":"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.","categories":["Unclassified"],"product":"onnx","vendor":"onnx","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115920","source_modified_at":"2026-10-26T17:26:40.506Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"onnx","vendor":"onnx","versions":[{"version":">= 1.2.1, < 1.22.0","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.2,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T17:26:40.506Z","modified_at":"2026-10-26T17:26:40.506Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115920","fetched_at":"2026-10-26T19:10:57.178988Z","source_modified_at":"2026-10-26T17:26:40.506Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/onnx/onnx/security/advisories/GHSA-6pwm-x34p-fvj2","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/onnx/onnx/pull/7997","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/onnx/onnx/commit/2ec288908952eea9dcf48d4b197915e1f72c6abf","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/onnx/onnx/releases/tag/v1.22.0","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T17:26:40.506Z","content_hash":"ede6efb7f6f0be9968ec5145a7345f86dd10465d7b0643313072ac7e4737024c"}}