High severity7.5NVD Advisory· Published Apr 1, 2026· Updated Apr 7, 2026
CVE-2026-27489
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
onnxPyPI | < 1.21.0 | 1.21.0 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cbnvdPatchWEB
- github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73nvdExploitMitigationPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-3r9x-f23j-gc73ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-27489ghsaADVISORY
News mentions
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