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 lengths) directly from an ONNX model file. It didn’t check if the "keys" in the file were valid. Due to this, an attacker could craft a malicious model that overwrites internal object properties. This issue has been patched in version 1.21.0.
References
| Link | Resource |
|---|---|
| https://github.com/onnx/onnx/commit/e30c6935d67cc3eca2fa284e37248e7c0036c46b | Patch |
| https://github.com/onnx/onnx/pull/7751 | Issue Tracking Patch |
| https://github.com/onnx/onnx/security/advisories/GHSA-538c-55jv-c5g9 | Patch Vendor Advisory |
Configurations
History
15 Apr 2026, 15:08
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:* | |
| First Time |
Linuxfoundation
Linuxfoundation onnx |
|
| References | () https://github.com/onnx/onnx/commit/e30c6935d67cc3eca2fa284e37248e7c0036c46b - Patch | |
| References | () https://github.com/onnx/onnx/pull/7751 - Issue Tracking, Patch | |
| References | () https://github.com/onnx/onnx/security/advisories/GHSA-538c-55jv-c5g9 - Patch, Vendor Advisory |
01 Apr 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-01 18:16
Updated : 2026-04-15 15:08
NVD link : CVE-2026-34445
Mitre link : CVE-2026-34445
CVE.ORG link : CVE-2026-34445
JSON object : View
Products Affected
linuxfoundation
- onnx