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.
Metrics
Affected Vendors & Products
References
History
Fri, 03 Apr 2026 01:30:00 +0000
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| Weaknesses | CWE-41 | |
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threat_severity
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threat_severity
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Thu, 02 Apr 2026 20:30:00 +0000
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Onnx
Onnx onnx |
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Onnx
Onnx onnx |
Thu, 02 Apr 2026 15:15:00 +0000
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ssvc
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Wed, 01 Apr 2026 23:45:00 +0000
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| 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. | |
| Title | ONNX: Arbitrary File Read via ExternalData Hardlink Bypass in ONNX load | |
| Weaknesses | CWE-22 CWE-61 |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-01T17:37:54.737Z
Updated: 2026-04-02T14:10:36.637Z
Reserved: 2026-03-27T18:18:14.894Z
Link: CVE-2026-34446
Updated: 2026-04-02T14:10:33.155Z
Status : Received
Published: 2026-04-01T18:16:30.660
Modified: 2026-04-01T18:16:30.660
Link: CVE-2026-34446