{"cve":"CVE-2026-100846","nvd":{"published":"2026-09-27T02:17:23.283","modified":"2026-10-08T16:17:00.040","status":"Analyzed","description":"MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining __reduce__ is executed during deserialization, resulting in arbitrary code execution in the context of the application.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":8.8},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-502"],"references":["https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4","https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization","https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4"],"products":["project-monai:monai"],"source":"nvd","synced_at":"2026-10-19T22:56:48.555445741+00:00"},"epss":{"cve":"CVE-2026-100846","score":0.00361,"percentile":0.29614,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-89gg-p5r5-q6r4","url":"https://osv.dev/vulnerability/GHSA-89gg-p5r5-q6r4","summary":"MONAI: Unsafe functions lead to pickle deserialization rce","modified":"2026-10-01T09:26:04.073836298Z","packages":[{"ecosystem":"PyPI","name":"monai","purl":"pkg:pypi/monai","ranges":["<1.6.0"],"fixed":["1.6.0"]}]},{"id":"PYSEC-2026-4021","url":"https://osv.dev/vulnerability/PYSEC-2026-4021","summary":"","modified":"2026-10-01T09:15:05.348272565Z","packages":[{"ecosystem":"PyPI","name":"monai","purl":"pkg:pypi/monai","ranges":["<1.5.2"],"fixed":["1.5.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}