---
cve: "CVE-2026-44512"
severity: "MEDIUM"
cvss: 5.5
epss: "18%"
vendor: "onnx"
kev: false
exploited: false
published: "2026-07-08 20:16:49"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T01:57:10+02:00"
---

# CVE-2026-44512

> 5.5 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 2bb50465112feca9003e1ed654d77f01ff1415ca (Commit)
- cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdf (Commit)

## Referenzen

- <https://github.com/onnx/onnx/security/advisories/GHSA-hwpq-hmq9-wj77>
- <https://github.com/onnx/onnx/pull/7813>
- <https://github.com/onnx/onnx/commit/cd310408165ad47c3cd7eb2b86cb5b80aa2e4fdf>
- <https://github.com/onnx/onnx/releases/tag/v1.22.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-44512) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_