Bug 2448518 (CVE-2026-28500) - CVE-2026-28500 onnx: ONNX: Untrusted Model Repository Warnings Suppressed
Summary: CVE-2026-28500 onnx: ONNX: Untrusted Model Repository Warnings Suppressed
Keywords:
Status: NEW
Alias: CVE-2026-28500
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2448796 2448797
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-18 02:02 UTC by OSIDB Bzimport
Modified: 2026-03-18 20:28 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-03-18 02:02:00 UTC
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. In versions up to and including 1.20.1, a security control bypass exists in onnx.hub.load() due to improper logic in the repository trust verification mechanism. While the function is designed to warn users when loading models from non-official sources, the use of the silent=True parameter completely suppresses all security warnings and confirmation prompts. This vulnerability transforms a standard model-loading function into a vector for Zero-Interaction Supply-Chain Attacks. When chained with file-system vulnerabilities, an attacker can silently exfiltrate sensitive files (SSH keys, cloud credentials) from the victim's machine the moment the model is loaded. As of time of publication, no known patched versions are available.


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