CVE-2026-34446

MEDIUM

4.7

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.

CVE Details

CVSS v3.1 Score4.7

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published4/1/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-22CWE-61

References

https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb(security-advisories@github.com)

https://github.com/onnx/onnx/security/advisories/GHSA-cmw6-hcpp-c6jp(security-advisories@github.com)

IOC Correlations

No correlations recorded

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