CVE-2026-27489

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.

References

• https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb
• https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73