Improperly Controlled Modification of Dynamically-Determined Object Attributes Affecting onnx package, versions [,1.21.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Apr 2026
- disclosed1 Apr 2026
- creditZeroXJacks
Introduced: 1 Apr 2026
CVE-2026-34445 (opens in a new tab)How to fix?
Upgrade onnx to version 1.21.0 or higher.
Overview
onnx is an Open Neural Network Exchange
Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes in the ExternalDataInfo function. An attacker can cause system unavailability, limited information disclosure, or data alteration by supplying a malicious model that manipulates internal object properties during metadata processing.