{"cve":"CVE-2026-27489","nvd":{"published":"2026-04-01T18:16:28.287","modified":"2026-07-15T02:19:07.997","status":"Modified","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-23","CWE-61","CWE-22"],"references":["https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb","https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73","https://access.redhat.com/errata/RHSA-2026:24977","https://access.redhat.com/security/cve/CVE-2026-27489","https://bugzilla.redhat.com/show_bug.cgi?id=2453929"],"products":["linuxfoundation:onnx"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-27489","score":0.00616,"percentile":0.49516,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3r9x-f23j-gc73","url":"https://osv.dev/vulnerability/GHSA-3r9x-f23j-gc73","summary":"onnx Vulnerable to Path Traversal via Symlink","modified":"2026-07-13T07:26:40.732136112Z","packages":[{"ecosystem":"PyPI","name":"onnx","purl":"pkg:pypi/onnx","ranges":["<1.21.0"],"fixed":["1.21.0"]}]},{"id":"PYSEC-2026-2239","url":"https://osv.dev/vulnerability/PYSEC-2026-2239","summary":"","modified":"2026-07-13T07:15:50.564001432Z","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."]}