CVE-2026-100844

Published: Set 27, 2026 Last Modified: Set 28, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 8,6

Source: [email protected]

Attack Vector: local

Attack Complexity: low

Privileges Required: none

User Interaction: none

Confidentiality: N/A

Integrity: N/A

Availability: N/A

HIGH 8,4

Source: [email protected]

Attack Vector: local

Attack Complexity: low

Privileges Required: none

User Interaction: none

Scope: unchanged

Confidentiality: high

Integrity: high

Availability: high

Description

AI Translation Available

MONAI before 1.6.0 is vulnerable to OS command injection in the nnUNetV2Runner component (monai.apps.nnunet.nnunetv2_runner). User-controlled values taken from the YAML configuration file (notably dataset_name_or_id) and from CLI/kwargs arguments are concatenated into a command string without quoting or validation and then passed to subprocess with shell=True, so shell metacharacters (e.g., ';' on Linux, '&' on Windows) are interpreted. If a victim loads and processes a crafted configuration file — for example by instantiating nnUNetV2Runner with the malicious YAML and invoking a training/validation job such as train_single_model() — arbitrary commands are executed with the privileges of the user running the job.

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Stable

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Confidentiality Integrity Availability Non-Repudiation

Potential Impacts:

Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Read Files Or Directories Modify Files Or Directories Read Application Data Modify Application Data Hide Activities