CVE-2026-14647onnx onnxruntime old.cc convPoolShapeInference_opset19 out-of-bounds

Description

A weakness has been identified in onnx up to 1.21.x. This vulnerability affects the function convPoolShapeInference_opset19 of the file onnx/defs/nn/old.cc of the component onnxruntime. This manipulation causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Patch name: a7bf3a0f1d18bb62575236ef6e4944980c40e045. It is recommended to apply a patch to fix this issue.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-376160 | onnx onnxruntime old.cc convPoolShapeInference_opset19 out-of-bounds vdb-entrytechnical-description
• VDB-376160 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-14647 | CVE Analysis and Report third-party-advisory
• Submit #846317 | onnx unpatched (HEAD); via onnxruntime 1.22.0 bundle Out-of-Bounds Read third-party-advisory
• https://github.com/onnx/onnx/issues/8036 exploitissue-tracking
• https://github.com/onnx/onnx/pull/8051 issue-trackingpatch
• https://github.com/onnx/onnx/commit/a7bf3a0f1d18bb62575236ef6e4944980c40e045 patch
• https://github.com/onnx/onnx/ product