# CVE-2022-31604: Unsafe deserialisation in the PKI implementation scheme of NVFlare

Source: https://junglewise.ai/threats/cve-2022-31604-unsafe-deserialisation-in-the-pki-implementation-scheme-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-07-01  
License: CC BY 4.0 with a link back

CVE-2022-31604 · Severity: low · CVSS 3.1 · Published 2022-07-01

NVFLARE, versions prior to 2.1.2, contains a vulnerability in its PKI implementation module, where The CA credentials are transported via pickle and no safe deserialization. The deserialization of Untrusted Data may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.

Technologies: [nvflare (PyPI)](https://junglewise.ai/threats/technologies/nvflare). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2022-31604 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-31604 being exploited in the wild.

**How severe is CVE-2022-31604?** Low severity, with a CVSS score of 3.1, published 1 July 2022.

**Which products and versions are affected?** nvflare (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.2.

**Is there a fix for CVE-2022-31604?** Yes. nvflare (PyPI): upgrade to 2.1.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2022-31604?** Check whether you run nvflare (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- nvflare (PyPI): upgrade to 2.1.2 or later

  ```sh
  pip install "nvflare>=2.1.2"
  ```


## Affected products

- nvflare (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.2

## Identifiers

- CVE-2022-31604
- GHSA-rcxc-3w2m-mp8h
- PYSEC-2022-231

## Related threats

- [PYSEC-2026-695 - Allocation of Resources Without Limits or Throttling in nvflare](https://junglewise.ai/threats/cve-2022-21822-allocation-of-resources-without-limits-or-throttling-in-nvflare)
- [NVIDIA NVFlare Dashboard authorization bypass in user management system](https://junglewise.ai/threats/cve-2026-24178-nvidia-nvflare-dashboard-authorization-bypass-in-user-management)
- [NVFLARE unsafe deserialization due to Pickle](https://junglewise.ai/threats/cve-2022-34668-nvflare-unsafe-deserialization-due-to-pickle)
- [PYSEC-2022-232 - NVFLARE, versions prior to 2.1.2, contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.](https://junglewise.ai/threats/cve-2022-31605-unsafe-yaml-deserialization-in-nvflare)