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CVE-2026-44512

ONNX: Null Pointer Dereference in Upsample Version Converter Adapter (Zero Inputs)

Published: Jul 8, 2026Updated: Jul 13, 2026 Sources: CVE List NVDCWE-476
5.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 91.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-476

Affected Products

linuxfoundation
oss-project·USaka yocto, everest, pytorch
onnxLibraryLibrary
AI / ML / ml-framework
onnx
oss-projectaka onnx-mlir
onnxLibrary
AI / ML / ml-framework

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://github.com/onnx/onnx/commit/cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdf
github.com
https://github.com/onnx/onnx/pull/7813
github.com
https://github.com/onnx/onnx/releases/tag/v1.22.0
github.com
and 1 more references View all →

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