{"id":"CVE-2026-21851","state":"PUBLISHED","title":"MONAI has Path Traversal (Zip Slip) in NGC Private Bundle Download","description":"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.","publishedAt":"2026-01-07T22:27:19.410Z","updatedAt":"2026-01-08T20:09:55.184Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["Project-MONAI MONAI"],"affected":[{"vendor":"Project-MONAI","product":"MONAI","versions":[{"version":"<= 1.5.1","status":"affected"}]}],"references":["https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27","https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21851.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21851","state":"PUBLISHED","datePublished":"2026-01-07T22:27:19.410Z","dateUpdated":"2026-01-08T20:09:55.184Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-05T16:44:16.366Z"},"containers":{"cna":{"title":"MONAI has Path Traversal (Zip Slip) in NGC Private Bundle Download","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Project-MONAI","product":"MONAI","versions":[{"version":"<= 1.5.1","status":"affected"}]}],"references":[{"url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27","name":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59","name":"https://github.com/Project-MONAI/MONAI/commit/4014c8475626f20f158921ae0cf98ed259ae4d59","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-07T22:27:19.410Z"},"source":{"advisory":"GHSA-9rg3-9pvr-6p27","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-9rg3-9pvr-6p27","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-08T20:09:52.023174Z","id":"CVE-2026-21851","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-08T20:09:55.184Z"}}]}}}