CVE-2026-109361

high

Description

MONAI 1.2.0 before 1.6.1 contains an insecure deserialization vulnerability in nnUNetV2Runner that unpickles the postprocessing_file path read from inference_information.json without confining it to the results directory. Attackers who can modify inference_information.json can point it at a malicious pickle elsewhere on the filesystem to execute code when predict_ensemble_postprocessing runs.

References

https://www.vulncheck.com/advisories/monai-1.2.0-before-1.6.1-insecure-deserialization-rce-via-nnunetv2runner-postprocessing-file-path

https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-8f32-8649-rv87

https://github.com/Project-MONAI/MONAI/commit/08576205c4de3c214976294d1dec8f7b2e78cdb9

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97663

Details

Source: Mitre, NVD

Published: 2026-10-12

Updated: 2026-10-26

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00234