Vulnerability Details CVE-2026-34446
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.3%
CVSS Severity
CVSS v3 Score 4.7
References
Products affected by CVE-2026-34446
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cpe:2.3:a:linuxfoundation:onnx:-
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cpe:2.3:a:linuxfoundation:onnx:0.1
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cpe:2.3:a:linuxfoundation:onnx:0.2
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cpe:2.3:a:linuxfoundation:onnx:1.0
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cpe:2.3:a:linuxfoundation:onnx:1.0.1
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cpe:2.3:a:linuxfoundation:onnx:1.1.0
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cpe:2.3:a:linuxfoundation:onnx:1.1.2
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cpe:2.3:a:linuxfoundation:onnx:1.10.0
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cpe:2.3:a:linuxfoundation:onnx:1.10.1
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cpe:2.3:a:linuxfoundation:onnx:1.10.2
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cpe:2.3:a:linuxfoundation:onnx:1.11.0
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cpe:2.3:a:linuxfoundation:onnx:1.12.0
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cpe:2.3:a:linuxfoundation:onnx:1.13.0
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cpe:2.3:a:linuxfoundation:onnx:1.16.0
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cpe:2.3:a:linuxfoundation:onnx:1.16.1
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cpe:2.3:a:linuxfoundation:onnx:1.16.2
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cpe:2.3:a:linuxfoundation:onnx:1.17.0
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cpe:2.3:a:linuxfoundation:onnx:1.2.1
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cpe:2.3:a:linuxfoundation:onnx:1.2.2
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cpe:2.3:a:linuxfoundation:onnx:1.2.3
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cpe:2.3:a:linuxfoundation:onnx:1.3.0
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cpe:2.3:a:linuxfoundation:onnx:1.4.0
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cpe:2.3:a:linuxfoundation:onnx:1.4.1
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cpe:2.3:a:linuxfoundation:onnx:1.5.0
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cpe:2.3:a:linuxfoundation:onnx:1.6.0
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cpe:2.3:a:linuxfoundation:onnx:1.7.0
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cpe:2.3:a:linuxfoundation:onnx:1.8.0
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cpe:2.3:a:linuxfoundation:onnx:1.8.1
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cpe:2.3:a:linuxfoundation:onnx:1.9.0