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CVE-2026-44512

MEDIUM
5.5
CVSS 3.1
Description
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.9.0 before 1.22.0, onnx.version_converter.convert_version() can dereference a null pointer in Upsample_6_7::adapt_upsample_6_7() in onnx/version_converter/adapters/upsample_6_7.h when processing an untrusted model with an Upsample node that has zero inputs, causing an unrecoverable denial of service. This issue is fixed in version 1.22.0.

Metadata

CVE ID
CVE-2026-44512
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-06 18:28 UTC
Published
2026-07-08 19:32 UTC
Last updated
2026-07-08 19:32 UTC
Primary CWE
CWE-476
CWE-476: NULL Pointer Dereference
Vendor / Product
onnx / onnx
Sources
cve.org  ·  NVD

Severity & Metrics

5.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products (1)
VendorProductPlatformVersions
onnx onnx — >= 1.9.0, < 1.22.0
Weakness (CWE)
CWESourceDescription
CWE-476 cna CWE-476: NULL Pointer Dereference
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.5 MEDIUM 3.1 cna CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References (4)
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