CVE-2026-118684

MONAI before 1.6.1 Missing Integrity Verification via check_hash in Downloads

Published Oct 28, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title MONAI before 1.6.1 Missing Integrity Verification via check_hash in Downloads
First Time appeared Project-monai
Project-monai monai
Weaknesses CWE-327
CPEs cpe:2.3:a:project-monai:monai:*:*:*:*:*:*:*:*
Vendors & Products Project-monai
Project-monai monai
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 4, 2026, 8:24 PM
Reserved
Oct 28, 2026, 5:28 PM
Status
Deferred
Published
Oct 28, 2026, 7:17 PM
Modified
Nov 4, 2026, 9:17 PM