UBUNTU-CVE-2026-28500

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Source
https://ubuntu.com/security/CVE-2026-28500
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28500.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-28500
Upstream
Published
2026-03-18T02:16:00Z
Modified
2026-05-26T20:00:12.416662852Z
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
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
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.

References

Affected packages

Ubuntu:22.04:LTS / onnx

Package

Name
onnx
Purl
pkg:deb/ubuntu/onnx?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.7.0+dfsg-3build1
1.7.0+dfsg-3build2
1.7.0+dfsg-3ubuntu1
1.7.0+dfsg-3ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libonnx-testdata",
            "binary_version": "1.7.0+dfsg-3ubuntu2"
        },
        {
            "binary_name": "libonnx1",
            "binary_version": "1.7.0+dfsg-3ubuntu2"
        },
        {
            "binary_name": "libonnxifi",
            "binary_version": "1.7.0+dfsg-3ubuntu2"
        },
        {
            "binary_name": "python3-onnx",
            "binary_version": "1.7.0+dfsg-3ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28500.json"

Ubuntu:Pro:24.04:LTS / onnx

Package

Name
onnx
Purl
pkg:deb/ubuntu/onnx?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.13.1-3
1.13.1-3build1
1.14.1-2
1.14.1-2.1
1.14.1-2.1build1
1.14.1-2.1build2
1.14.1-2.1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libonnx-testdata",
            "binary_version": "1.14.1-2.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libonnx1t64",
            "binary_version": "1.14.1-2.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-onnx",
            "binary_version": "1.14.1-2.1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28500.json"

Ubuntu:25.10 / onnx

Package

Name
onnx
Purl
pkg:deb/ubuntu/onnx?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.17.0-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libonnx-testdata",
            "binary_version": "1.17.0-3build1"
        },
        {
            "binary_name": "libonnx1t64",
            "binary_version": "1.17.0-3build1"
        },
        {
            "binary_name": "python3-onnx",
            "binary_version": "1.17.0-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28500.json"

Ubuntu:26.04:LTS / onnx

Package

Name
onnx
Purl
pkg:deb/ubuntu/onnx?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.17.0-3build1
1.20.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libonnx-testdata",
            "binary_version": "1.20.0-1"
        },
        {
            "binary_name": "libonnx1t64",
            "binary_version": "1.20.0-1"
        },
        {
            "binary_name": "python3-onnx",
            "binary_version": "1.20.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-28500.json"