{"cve":"CVE-2026-34447","nvd":{"published":"2026-04-01T18:16:30.810","modified":"2026-06-17T10:39:03.897","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":5.5},"cwes":["CWE-22","CWE-61"],"references":["https://github.com/onnx/onnx/security/advisories/GHSA-p433-9wv8-28xj"],"products":["linuxfoundation:onnx"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-34447","score":0.00258,"percentile":0.17506,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p433-9wv8-28xj","url":"https://osv.dev/vulnerability/GHSA-p433-9wv8-28xj","summary":"ONNX: External Data Symlink Traversal","modified":"2026-09-10T03:50:44.812731283Z","packages":[{"ecosystem":"PyPI","name":"onnx","purl":"pkg:pypi/onnx","ranges":["<1.21.0"],"fixed":["1.21.0"]}]},{"id":"PYSEC-2026-104","url":"https://osv.dev/vulnerability/PYSEC-2026-104","summary":"","modified":"2026-05-20T09:19:09.984613Z","packages":[{"ecosystem":"PyPI","name":"onnx","purl":"pkg:pypi/onnx","ranges":["<1.21.0"],"fixed":["1.21.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}