{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100846","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-27T00:18:40.972Z","datePublished":"2026-09-27T01:28:41.003Z","dateUpdated":"2026-09-27T01:28:41.003Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-27T01:28:41.003Z"},"datePublic":"2026-04-03T00:00:00.000Z","title":"MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Deserialization of Untrusted Data","cweId":"CWE-502","type":"CWE"}]}],"affected":[{"vendor":"Project-MONAI","product":"MONAI","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.5.2"},{"version":"1.5.2","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:project-monai:monai:*:*:*:*:*:*:*:*","versionEndExcluding":"1.5.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.6,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-89gg-p5r5-q6r4)"},{"name":"VulnCheck Advisory: MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization"}],"credits":[{"lang":"en","value":"hnking-star","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}