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🟠 ONNX, Null Pointer Dereference, #CVE-2026-115921 (Medium) -DC-Oct2026-3920 https://dailycve.com/onnx-null-pointer-dereference-cve-2026-115921-medium-dc-oct2026-3920/
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CVE-2026-115921
LOWCVSS 6.2 · MEDIUMSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. From 1.4.0 until 1.22.0, ScanInferenceFunction, ScanInferenceFunction_opset8, and ScanInferenceFunction_opset9 do not safely validate the required num_scan_inputs attribute. A missing attribute is dereferenced as a null pointer, while a negative value is converted to size_t and can reach an exceptional oversized allocation path. An untrusted model can therefore terminate or disrupt shape inference, including a negative-value model that can pass onnx.checker.check_model(). This issue is fixed in version 1.22.0.
0.0/ 10 priority
Sources & remediation
Other references
Weakness type (CWE)
CWE-195CWE-476
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day