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.

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS

0.25% chance of exploitation in the next 30 days, 16th percentile

Published

2026-04-01

Proof-of-concept exploits (1)

• advisories/GHSA-p433-9wv8-28xj

References

• CVE Record
• NVD entry

Related

• CVE-2026-34444
• CVE-2026-34448
• CVE-2026-34429
• CVE-2026-34449
• CVE-2026-34417
• CVE-2026-34453