Detections
Analytics
CVE-2026-34446
medium
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.
References
https://github.com/onnx/onnx/security/advisories/GHSA-cmw6-hcpp-c6jp
https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb