ONNX: Path Traversal via Symlink_CVE-2026-27489

8.7 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Description

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, a path traversal vulnerability via symlink allows to read arbitrary files outside model or user-provided directory. This issue has been patched in version 1.21.0.

Basic Information

ID CVE-2026-27489

Source GitHub_M

Published Apr 1, 2026 at 17:33

Modified Apr 1, 2026 at 19:09

Affected Product

Vendor onnx

Product onnx

Version < 1.21.0

Affected Versions onnx onnx < 1.21.0

CWE Classification

CWE-23 CWE-61

References

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    "published": "2026-04-01T17:33:51.281Z",
    "modified": "2026-04-01T19:09:18.474Z",
    "type": "cve",
    "title": "ONNX: Path Traversal via Symlink",
    "source": "GitHub_M",
    "references": "https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73\nhttps://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb",
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