{"id":"UBUNTU-CVE-2026-27489","details":"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.","modified":"2026-06-30T18:17:42.333153153Z","published":"2026-04-01T18:16:00Z","upstream":["CVE-2026-27489"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-27489"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-27489"}],"affected":[{"package":{"name":"onnx","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/onnx?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.0+dfsg-3build1","1.7.0+dfsg-3build2","1.7.0+dfsg-3ubuntu1","1.7.0+dfsg-3ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libonnx-testdata","binary_version":"1.7.0+dfsg-3ubuntu2"},{"binary_version":"1.7.0+dfsg-3ubuntu2","binary_name":"libonnx1"},{"binary_name":"libonnxifi","binary_version":"1.7.0+dfsg-3ubuntu2"},{"binary_name":"python3-onnx","binary_version":"1.7.0+dfsg-3ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27489.json"}},{"package":{"name":"onnx","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/onnx?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.1-3","1.13.1-3build1","1.14.1-2","1.14.1-2.1","1.14.1-2.1build1","1.14.1-2.1build2","1.14.1-2.1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libonnx-testdata","binary_version":"1.14.1-2.1ubuntu0.1~esm1"},{"binary_name":"libonnx1t64","binary_version":"1.14.1-2.1ubuntu0.1~esm1"},{"binary_name":"python3-onnx","binary_version":"1.14.1-2.1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27489.json"}},{"package":{"name":"onnx","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/onnx?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17.0-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libonnx-testdata","binary_version":"1.17.0-3build1"},{"binary_name":"libonnx1t64","binary_version":"1.17.0-3build1"},{"binary_name":"python3-onnx","binary_version":"1.17.0-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27489.json"}},{"package":{"name":"onnx","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/onnx?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.17.0-3build1","1.20.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libonnx-testdata","binary_version":"1.20.0-1"},{"binary_name":"libonnx1t64","binary_version":"1.20.0-1"},{"binary_version":"1.20.0-1","binary_name":"python3-onnx"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27489.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}