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TI-2026-82171 Aliases CVE-2026-118683GHSA-475h-4rfw-9899

Code execution in MONAI through bundle logging.conf files

Priority MEDIUM 40CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

MONAI from 1.2.0 before 1.6.1 contains a code injection flaw (CWE-94) in ConfigWorkflow.__init__, which passes a bundle's configs/logging.conf to logging.config.fileConfig, and that function evaluates handler class and args fields as Python code. An attacker who publishes a malicious bundle can run arbitrary Python when a victim loads or runs the bundle, during workflow construction.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

MONAI from 1.2.0 before 1.6.1 contains a remote code execution vulnerability in ConfigWorkflow.__init__, which passes a bundle's configs/logging.conf to logging.config.fileConfig that eval()s handler class and args fields. Attackers can publish a malicious bundle whose logging.conf runs arbitrary Python at workflow construction when a victim loads or runs the bundle.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00486 42nd percentileScored 2026-11-07
Fix Fixed MONAI (Project-MONAI): 1.6.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Project-MONAIMONAI1.2.0 to before 1.6.11.6.1Patch availableCNA
  • MONAI VendorProject-MONAI Affected 1.2.0 to before 1.6.1 Fixed in 1.6.1 Patch available CNA

Remediation

Upgrade MONAI to version 1.6.1, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA MONAI (Project-MONAI) Fixed in 1.6.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Project-MONAI MONAI 1.6.1

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2026-82172 Missing integrity check in MONAI downloads accepts unverified filesPriority HIGH 69
    Show all 2 records →

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118683
  2. 2026-10-28 Alias added: GHSA-475h-4rfw-9899
  3. 2026-10-29 CISA SSVC decision points changed
  4. 2026-10-29 Priority changed: MEDIUM → LOW
  5. 2026-10-30 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2026-85662 MONAI accepts non-finite DICOM geometry values, corrupting inference CVSS 3.1CRITICAL 9.3
  • TI-2026-64984 MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization CVSS 4.0HIGH 8.8
  • TI-2025-36415 MONAI's unsafe use of Pickle deserialization may lead to RCE CVSS 3.1HIGH 8.8
  • TI-2026-83080 Remote code execution in MONAI Auto3DSeg algo_from_json() CVSS 4.0HIGH 8.5
  • TI-2026-64983 MONAI before 1.6.0 Remote Code Execution via NumpyReader CVSS 4.0HIGH 8.5
  • TI-2026-64982 MONAI before 1.6.0 OS Command Injection via dataset_name_or_id CVSS 4.0HIGH 8.6
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences