CVE-2026-27489

High

Open

TLP:CLEAR

ONNX: Path Traversal via Symlink

NVD CVE.org

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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.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.59%

45.5th percentile
CVSS Vector: 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
Confidence: 90%
Published: Apr 1, 2026
Last Modified: Jul 15, 2026

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