Junglewise Threat Intelligence

CVE-2026-34446: PYSEC-2026-2241 - Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is an issue in

CVE-2026-34446 · Severity: low · CVSS 3.1 · Published 2026-04-01

Technologies: onnx (PyPI). Vendors: PyPI.

Executive brief

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is an issue in onnx.load, the code checks for symlinks to prevent path traversal, but completely misses hardlinks because a hardlink looks exactly like a regular file on the filesystem. This issue has been patched in version 1.21.0.

Affected products

  • PyPI onnx

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