CVE-2026-118684
Medium
Description
MONAI before 1.6.1 contains an insufficient integrity verification vulnerability in check_hash() that silently returns True when hash_val is None, with MD5 as the default hash type. Attackers performing man-in-the-middle or registry compromise can substitute bundles, datasets, or model archives downloaded without hashes, enabling malicious file delivery and potential code execution.
SeverityMedium
CVSS5.9
Exploit probability—
ProductMONAI
PublishedOct 28, 2026
First seenNov 4, 2026
Weakness typeCWE-327CWE-327
How to fix
Update
- Project-MONAI MONAI1.6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Project-MONAI MONAI | v < 1.6.1 | 1.6.1 |
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