CVE-2026-11329onnx onnx-mlir Placeholder Node Cache backend.py generate_hash_key weak hash

Description

A vulnerability has been found in onnx onnx-mlir up to 0.5.0.0. Affected by this issue is the function generate_hash_key of the file src/Runtime/python/torch_onnxmlir/src/torch_onnxmlir/backend.py of the component Placeholder Node Cache Handler. Such manipulation leads to use of weak hash. An attack has to be approached locally. A high complexity level is associated with this attack. The exploitation is known to be difficult. The name of the patch is 72c5187ff6d13c2c2b3d3789b8f5faf99f08a5b4. Applying a patch is advised to resolve 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-368865 | onnx onnx-mlir Placeholder Node Cache backend.py generate_hash_key weak hash vdb-entrytechnical-description
• VDB-368865 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
• CVE-2026-11329 | CVE Analysis and Report third-party-advisory
• Submit #832358 | onnx onnx-mlir v0.5.0.0 cache key collision third-party-advisory
• https://github.com/onnx/onnx-mlir/pull/3427 issue-trackingpatch
• https://github.com/onnx/onnx-mlir/commit/72c5187ff6d13c2c2b3d3789b8f5faf99f08a5b4 patch
• https://github.com/onnx/onnx-mlir/ product