Vulnerability · Published Sep 27, 2026 · Assigned by VulnCheck

CVE-2026-100840MONAI through 1.6.0 Remote Code Execution via bundle configuration

High 7.8

In plain English

A high-severity security flaw in MONAI from Project-MONAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.3%top 75.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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().

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	monai	1.6.1rc0	PYSEC-2026-4015

Affected products (as reported)

Vendor	Product	Versions
Project-MONAI	MONAI	0 – through 1.6.0

Weakness: CWE-95 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-873f-pvrv-4x83) vendor-advisory
VulnCheck Advisory: MONAI through 1.6.0 Remote Code Execution via bundle configuration third-party-advisory