{"id":"CVE-2026-100840","aliases":["EUVD-2026-87848","GHSA-873f-pvrv-4x83","GHSA-8jxj-xq3g-hvm2","PYSEC-2026-4015"],"status":"published","title":"MONAI through 1.6.0 Remote Code Execution via bundle configuration","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00313,"percentile":0.24472,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-95"],"published":"2026-09-27T01:28:36Z","modified":"2026-10-28T02:31:02Z","fixes":[{"ecosystem":"PyPI","package":"monai","fixed_in":["1.6.1rc0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"PyPI","package":"monai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1rc0"}]}],"versions":["0.0.1","0.1.0","0.2.0","0.3.0","0.4.0","0.5.0","0.5.1","0.5.2","0.5.3","0.6.0","0.7.0","0.8.0","0.8.1","0.9.0","0.9.1","1.0.0","1.0.1","1.1.0","1.2.0","1.3.0","1.3.1","1.3.2","1.3.2rc1","1.3.3rc1","1.4.0","1.4.0rc1","1.4.0rc10","1.4.0rc11","1.4.0rc12","1.4.0rc2","1.4.0rc3","1.4.0rc4","1.4.0rc5","1.4.0rc6","1.4.0rc7","1.4.0rc8","1.4.0rc9","1.4.1rc1","1.5.0","1.5.0rc1","1.5.1","1.5.2","1.5.2rc1","1.6.0"]}],"products":[{"vendor":"project-monai","product":"monai"}],"references":[{"url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-873f-pvrv-4x83","tags":["vendor-advisory","exploit","Exploit","Mitigation","Vendor Advisory","advisory","evidence"]},{"url":"https://www.vulncheck.com/advisories/monai-through-1.6.0-remote-code-execution-via-bundle-configuration","tags":["third-party-advisory","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100840","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8jxj-xq3g-hvm2"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100840.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-100840","title":"MONAI through 1.6.0 Remote Code Execution via bundle configuration","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T01:28:36.821Z","modified":"2026-09-28T16:46:00.366Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-87848","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T01:28:36Z","modified":"2026-09-28T16:46:00Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:53.091489Z"}],"ghsa":[{"id":"GHSA-8jxj-xq3g-hvm2","title":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration...","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T03:31:04Z","modified":"2026-09-27T03:31:13Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:12:30.689958Z"}],"nvd":[{"id":"CVE-2026-100840","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T02:17:22.387Z","modified":"2026-09-30T15:40:44.64Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T14:12:52.081323Z"}],"osv":[{"id":"CVE-2026-100840","title":"MONAI through 1.6.0 Remote Code Execution via bundle configuration","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T01:28:36.821Z","modified":"2026-10-28T02:31:02.96092264Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:44:53.83521Z"},{"id":"PYSEC-2026-4015","description":"MONAI through 1.6.0 contains a remote code execution vulnerability in the bundle configuration engine that resolves _target_ values to arbitrary importable callables without an allow list and passes $ expressions to Python eval(). Attackers can publish a malicious bundle with crafted configuration containing arbitrary code that executes when a victim loads the bundle using monai.bundle.load() or monai.bundle.run().","status":"published","published":"2026-09-27T02:17:22.387Z","modified":"2026-10-01T09:15:05.305433746Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"updated_at":"2026-11-02T15:52:57.255153Z"}]}}