{"id":"CVE-2026-100846","summary":"MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization","details":"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.","aliases":["GHSA-89gg-p5r5-q6r4"],"modified":"2026-09-28T03:48:32.113797112Z","published":"2026-09-27T01:28:41.003Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100846.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-502"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100846.json"},{"type":"ADVISORY","url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100846"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/project-monai/monai","events":[{"introduced":"0"},{"fixed":"d18565fb3e4fd8c556707f91ac280a2dc3f681c1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.5.2"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["1.5.2rc1","1.5.1","1.5.0","1.5.0rc1","1.4.1rc1","1.4.0","1.4.0rc12","1.4.0rc11","1.4.0rc10","1.4.0rc9","1.4.0rc8","1.4.0rc7","1.4.0rc6","1.4.0rc5","1.4.0rc4","1.4.0rc3","1.4.0rc2","1.4.0rc1","1.3.3rc1","1.3.1","1.3.1rc8","1.3.1rc7","1.3.1rc6","1.3.1rc5","1.3.1rc4","1.3.1rc3","1.3.1rc2","1.3.1rc1","1.3.0","1.3.0rc5","1.3.0rc4","1.3.0rc3","1.3.0rc2","1.3.0rc1","1.2.0","1.2.0rc7","1.2.0rc6","1.2.0rc5","1.2.0rc4","1.2.0rc2","1.2.0rc1","1.1.0","1.1.0rc2","1.1.0rc1","1.0.0rc3","1.0.0rc2","1.0.0rc1","0.9.1","0.9.1rc5","0.9.1rc4","0.9.1rc3","0.9.1rc2","0.9.1rc1","0.9.0","0.9.0rc3","0.9.0rc2","0.9.0rc1","0.8.1","0.8.1rc5","0.8.1rc4","0.8.1rc3","0.8.1rc2","0.8.1rc1","0.8.0","0.8.0rc3","0.8.0rc2","0.8.0rc1","0.7.0","0.7.0rc5","0.7.0rc4","0.7.0rc3","0.7.0rc2","0.7.0rc1","0.6.0","0.6.0rc2","0.6.0rc1","0.5.2","0.5.1","0.5.0","0.5.0rc5","0.5.0rc4","0.5.0rc3","0.5.0rc2","0.5.0rc1","0.4.0","0.4.0rc2","0.4.0rc1","0.3.0","0.3.0rc4","0.3.0rc3","0.3.0rc2","0.3.0rc1","0.2.0","0.2.0rc3","0.2.0rc2","0.2.0rc1","0.1.0","0.1.0rc2","0.1.0rc1","0.1a1.dev9","0.1a1.dev8","0.1a1.dev7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100846.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}