MONAI's unsafe use of Pickle deserialization may lead to RCE
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.0, the `pickle_operations` function in `monai/data/utils.py` automatically handles dictionary key-value pairs ending with a specific suffix and deserializes them using `pickle.loads()` . This function also lacks any security measures. The deserialization may lead to code execution. As of time of publication, no known fixed versions are available.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Project-MONAI | MONAI | up to 1.5.0 | — | No fix listed | CNA |
| — | monai (PyPI) | before 1.5.1 | 1.5.1 | Patch available | GHSA-p8cm-mm2v-gwjm |
- MONAI VendorProject-MONAI Affected up to 1.5.0 Fixed in — No fix listed CNA
- monai (PyPI) Vendor— Affected before 1.5.1 Fixed in 1.5.1 Patch available GHSA-p8cm-mm2v-gwjm
Remediation
- Fix · GHSA-p8cm-mm2v-gwjm monai (PyPI) Fixed in 1.5.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-58757
- 2026-10-03 Alias added: GHSA-p8cm-mm2v-gwjm
- 2026-10-20 EPSS moved to the 50th–90th percentile
References
More Project-MONAI vulnerabilities
- 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-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
- TI-2026-64981 MONAI before 1.6.0 Remote Code Execution via algo_from_pickle CVSS 4.0HIGH 8.5
Sources
- CVE-2025-58757 · CVE Program
- CVE-2025-58757 · NVD
- FIRST EPSS
- GHSA-p8cm-mm2v-gwjm · GitHub Advisory Database · CC BY 4.0
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