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CVE-2026-100840

7.8 · HIGH

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 passe…

Published Sep 27, 2026project-monaiCWE-95EPSS 0.31%

Overview

CVE-2026-100840 is a high-severity vulnerability affecting project-monai monai. It was published on September 27, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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().

Remediation

Check the references section for vendor advisories and patches from project-monai. Update monai to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
project-monaimonai0Affected

References

GitHubgithub.com/Project-MONAI/MONAI/security/advisories/GHSA-873f-pvrv-4x83Refwww.vulncheck.com/advisories/monai-through-1.6.0-remote-code-execution-via-bundle-configurationGitHubgithub.com/Project-MONAI/MONAI/security/advisories/GHSA-873f-pvrv-4x83

How CyberStrike helps

Frequently asked questions

What is CVE-2026-100840?

CVE-2026-100840 is a high-severity vulnerability affecting project-monai monai. It was published on September 27, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-100840?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-100840?

Check the references section for vendor advisories and patches from project-monai. Update monai to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-100840?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-100840 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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