---
cve: "CVE-2026-100846"
severity: "HIGH"
cvss: 8.8
epss: "0.3%"
vendor: "Project-MONAI"
kev: false
exploited: false
published: "2026-09-27 02:17:23"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-29T04:25:25+02:00"
---

# CVE-2026-100846

> 8.8 HIGH · 🧪 PoC

## Beschreibung

MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining __reduce__ is executed during deserialization, resulting in arbitrary code execution in the context of the application.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-27 01:28:41
- CNA-CVSS: **8.8** (`CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Hoch | good |

## Patch verfügbar (OSV)

- d18565fb3e4fd8c556707f91ac280a2dc3f681c1 (Commit)

## Referenzen

- <https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4>
- <https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100846) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_