Resource exhaustion in Onnx
CVE-2026-34445
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, the ExternalDataInfo class in ONNX was using Python’s setattr() function to load metadata (like file paths or data leng…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.002 (43.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Onnx — versions < 1.21.0
Weakness classification (CWE)
References
- https://github.com/onnx/onnx/security/advisories/GHSA-538c-55jv-c5g9 (x_refsource_CONFIRM)
- https://github.com/onnx/onnx/pull/7751 (x_refsource_MISC)
- https://github.com/onnx/onnx/commit/e30c6935d67cc3eca2fa284e37248e7c0036c46b (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-34445?
- CVE-2026-34445 is a high-severity vulnerability in Onnx, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2026-04-01.
- How severe is CVE-2026-34445?
- High severity. CVSS v3 base score is 8.6 out of 10.