CVE-2026-100840

High

Description

MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().

SeverityHigh

CVSS7.8

Exploit probability24. percentile0.3%

ProductMonai

PublishedSep 27, 2026

First seenSep 27, 2026

Weakness typeCWE-95CWE-95

How to fix

Update

monai1.6.1rc0 or later

Vendor advisories

github.com/Project-MONAI/MONAI/security/advisories/GHSA-873f-pvrv-4x83

Affected products

Product	Affected versions	Fixed in
project-monai monai	v ≤ 1.6.0	—
monaiPyPI	v < 1.6.1rc0	1.6.1rc0

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