MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization
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.
CVE-2026-100846
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-100846
MONAI
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Project-MONAI",
"product": "MONAI",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.5.2",
"versionType": "semver"
}
],
"packageURL": "pkg:pypi/monai",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-100846
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12682 · Revision 1
- Added to Heist Feed
- Publisher date