CVE-2026-34447

PoC —

CVSS 3.1

5.5 medium

EPSS

<1%p16

Published

Apr 1, 2026 (Apr 1, 2026)

Modified

Jun 17, 2026

Description

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is a symlink traversal vulnerability in external data loading allows reading files outside the model directory. This issue has been patched in version 1.21.0.

Vendors: linuxfoundation
Products: onnx
Weakness: CWE-22, CWE-61
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

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