CVE-2026-34447

Description

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is a symlink traversal vulnerability in external data loading allows reading files outside the model directory. This issue has been patched in version 1.21.0.

PUBLISHED Reserved 2026-03-27 | Published 2026-04-01 | Updated 2026-04-01 | Assigner GitHub_M

Problem types

CWE-61: UNIX Symbolic Link (Symlink) Following

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

References

github.com/onnx/onnx/security/advisories/GHSA-p433-9wv8-28xj

cve.org (CVE-2026-34447)

nvd.nist.gov (CVE-2026-34447)

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