CVE-2026-34445

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Source
https://cve.org/CVERecord?id=CVE-2026-34445
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34445.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34445
Aliases
Downstream
Related
Published
2026-04-01T17:30:19Z
Modified
2026-08-12T03:51:32Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
Summary
ONNX: Malicious ONNX models can crash servers by exploiting unprotected object settings.
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-20",
        "CWE-400",
        "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34445.json"
}
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
Fixed
be2b5fde82d9c8874f3d19328bdfe3b6962dc67b
Fixed
e30c6935d67cc3eca2fa284e37248e7c0036c46b
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.21.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34445.json"