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4.7 Medium

CVE-2026-34446 Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability

Description

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 and versions

Product Affected versions Fixed in
onnx 1.21 earliest → < 1.21.0 1.21.0
The 14 CVEs of onnx →
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