Path Traversal in Linuxfoundation Onnx
CVE-2026-34447
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Linuxfoundation Onnx
- Onnx — versions < 1.21.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-34447?
- CVE-2026-34447 is a medium-severity vulnerability in Linuxfoundation Onnx, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-04-01.
- How severe is CVE-2026-34447?
- Medium severity. CVSS v3 base score is 5.5 out of 10.