CVE-2026-34445

HIGH

8.6

Description

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.

Details CVE

Score CVSS v3.18.6

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/1/2026

Derniere modification4/3/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-20CWE-400CWE-915

References

https://github.com/onnx/onnx/commit/e30c6935d67cc3eca2fa284e37248e7c0036c46b(security-advisories@github.com)

https://github.com/onnx/onnx/pull/7751(security-advisories@github.com)

https://github.com/onnx/onnx/security/advisories/GHSA-538c-55jv-c5g9(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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