CVE-2026-21851

MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.1, a Path Traversal (Zip Slip) vulnerability exists in MONAI's `_download_from_ngc_private()` function. The function uses `zipfile.ZipFile.extractall()` without path validation, while other similar download functions in the same codebase properly use the existing `safe_extract_member()` function. Commit 4014c8475626f20f158921ae0cf98ed259ae4d59 fixes this issue.

• CWE-22

• https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59Patch
• https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27Exploit, Mitigation, Vendor Advisory
• https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27Exploit, Mitigation, Vendor Advisory

Published

Jan 7, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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