{"id":"CVE-2026-100846","title":"MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py","summary":"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 dat…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"Project-MONAI","product":"MONAI","affected":["MONAI < 1.5.2"],"published":"2026-09-27","updated":"2026-09-27","sourceUpdated":"2026-09-27T02:17:23.283","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100846","references":[{"url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-27T02:41:45.575Z","slug":"CVE-2026-100846","body":"## Overview\n\nMONAI 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}