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OpenAdvisories
High · 8.7 CVE-2026-27489 EUVD-2026-17969GHSA-3r9x-f23j-gc73PYSEC-2026-2239

ONNX: Path Traversal via Symlink

Published Apr 1, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
onnx onnx < 1.21.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 onnx No fix yet —
Debian 13 onnx No fix yet —
Debian 12 onnx No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 onnx No fix yet —
Ubuntu 26.04 LTS onnx No fix yet —
Ubuntu 25.10 onnx No fix yet —
Ubuntu 22.04 LTS onnx No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS onnx No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI onnx < 1.21.0 1.21.0 GHSA-3r9x-f23j-gc73

References