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CVE-2026-100846

8.8, high

Project-MONAI MONAI Deserialization of Untrusted Data Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 20.3% of scored CVEs
Exploitation
Exploit code published
Published
27 Sept 202620 days ago

Description

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.

Details

Vendor
Project-MONAI
Product
MONAI
Weakness
CWE-502 (opens in a new tab)
Status
Analyzed
Updated
8 Oct 2026
Assigner
disclosure@vulncheck.com

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

References 2

Exploit code 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Project-MONAI CVEs

Every Project-MONAI CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109360 Project-MONAI MONAI Deserialization of Untrusted Data Vulnerability EPSS 0.5% 7.5, high
  • CVE-2026-109361 Project-MONAI MONAI Deserialization of Untrusted Data Vulnerability EPSS 0.2% 7.3, high
  • CVE-2026-100842 Project-MONAI MONAI Eval Injection Vulnerability EPSS 0.1% 8.8, high
  • CVE-2026-100844 Project-MONAI MONAI OS Command Injection Vulnerability EPSS 0.8% 7.8, high

Beyond this page

Is CVE-2026-100846 in your network?

This page tells you how dangerous CVE-2026-100846 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.