NVFLARE unsafe deserialization due to Pickle
Impact
NVFLARE contains a vulnerability where deserialization of Untrusted Data due to Pickle usage may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.
All versions before 2.1.4 are affected.
CVSS Score = 9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Patches
The patch is included in nvflare==2.1.4 This new version uses MessagePack instead of Pickle to do serialization and deserialization.
Some object serializations supported by Pickle are not supported by MessagePack. We have provided out of box support for some built-in NVFLARE objects. For object serializations unsupported by MessagePack, the user will need to convert the objects to numpy or bytes before sending over to remote machines. The list of supported object types are listed in https://github.com/NVIDIA/NVFlare/blob/2.1/nvflare/fuel/utils/fobs/README.rst
Workarounds
No workarounds available.
Additional information
Issue Found by: Oliver Sellwood (Nintorac) and Elias Hohl
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | nvflare | < 2.1.4 | 2.1.4 |
Referencias
- https://github.com/NVIDIA/NVFlare/security/advisories/GHSA-6qv6-q77g-7qm6
- https://nvd.nist.gov/vuln/detail/CVE-2022-34668
- https://github.com/NVIDIA/NVFlare/commit/6cde16f3f4711583ae4d896dfcc125d25c7d5b0d
- https://github.com/NVIDIA/NVFlare
- https://github.com/pypa/advisory-database/tree/main/vulns/nvflare/PYSEC-2022-257.yaml
- http://packetstormsecurity.com/files/171483/NVFLARE-Unsafe-Deserialization.html
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-502- Plataforma
- Python (PyPI)
- Paquete
nvflare- Publicada
- 29.08.2022
- Actualizado
- 11.10.2026 13:19
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2022-257 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6qv6-q77g-7qm6 - CC BY 4.0
Historial de vulnerabilidades: nvflare
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 5
- Primera → última
- 03.2022 04.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 4
- Alta 1
Divulgaciones por año
- 2022: 4
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
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NVFLARE unsafe deserialization due to Pickle esta entrada
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