CVE-2026-118684

MONAI before 1.6.1 Missing Integrity Verification via check_hash in Downloads

MEDIUM
5.9
CVSS Score
Published: October 28, 2026 at 06:59 PM UTC
Updated: October 28, 2026 at 07:17 PM UTC
1 product affected across 1 vendorMONAI

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in 1.6.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

5.9MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-327

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