CVE-2026-100846

MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization

HIGH
8.8
CVSS Score
Published: September 27, 2026 at 01:28 AM UTC
Updated: October 8, 2026 at 04:17 PM UTC
1 product affected across 1 vendorMONAI

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.5.20 ≤ v < 1.5.2*0
Vendor states this is fixed in 1.5.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulnCheck
Vector?

Quick Info

StatusANALYZED
CWE
CWE-502

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