CVE-2026-28500

Source
https://cve.org/CVERecord?id=CVE-2026-28500
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28500.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-28500
Aliases
Downstream
Related
Published
2026-03-18T01:15:07.644Z
Modified
2026-05-20T08:11:14.041677253Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
ONNX Untrusted Model Repository Warnings Suppressed by silent=True in onnx.hub.load() — Silent Supply-Chain Attack
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28500.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-345",
        "CWE-494",
        "CWE-693"
    ]
}
References

Affected packages

Git / github.com/onnx/onnx

Affected ranges

Type
GIT
Repo
https://github.com/onnx/onnx
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.20.1"
        }
    ]
}

Affected versions

v0.*
v0.1
v0.2
v1.*
v1.1.0
v1.20.0
v1.20.1
v1.3.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28500.json"