{"id":"CVE-2022-31604","aliases":["GHSA-rcxc-3w2m-mp8h","PYSEC-2022-231"],"title":"Unsafe deserialisation in the PKI implementation scheme of NVFlare","summary":"Unsafe deserialisation in the PKI implementation scheme of NVFlare","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"nvflare","product":"nvflare","ecosystem":"pip","affected":["nvflare < 2.1.2"],"patched":["nvflare 2.1.2"],"published":"2022-06-22","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-rcxc-3w2m-mp8h","references":[{"url":"https://github.com/NVIDIA/NVFlare/security/advisories/GHSA-rcxc-3w2m-mp8h"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-31604"},{"url":"https://github.com/NVIDIA/NVFlare/commit/fd018eea9dff925a765079a94c2f017920fcda67"},{"url":"https://github.com/NVIDIA/NVFlare"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/nvflare/PYSEC-2022-231.yaml"}],"tags":["osv","pip"],"epss":0.02079,"epssPercentile":0.80662,"ingestedAt":"2026-07-08T18:25:52.699Z","slug":"CVE-2022-31604","body":"## Overview\n\n### Impact\nNVFLARE 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.\nAll versions before 2.1.2 are affected.\n\nCVSS Score = 9.8\n[AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H](https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fnvd.nist.gov%2Fvuln-metrics%2Fcvss%2Fv3-calculator%3Fvector%3DAV%3AN%2FAC%3AL%2FPR%3AN%2FUI%3AN%2FS%3AU%2FC%3AH%2FI%3AH%2FA%3AH&data=05%7C01%7Cchesterc%40nvidia.com%7Ce9600bde16854b0b380008da4fc544f7%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C637910005925574215%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=5kBrXEmAbqp8R31JCH%2FG95MUly72UPVihnBwiRFmvBY%3D&reserved=0)\n\n\n\n### Patches\nThe patch will be included in nvflare==2.1.2\n\n### Workarounds\nReplace pickle serialization with JSON and change the code accordingly\n\nAdditional information\nIssue Found by: Oliver Sellwood (@Nintorac)\n\n\n\n## Affected packages\n\n- `nvflare < 2.1.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `nvflare 2.1.2`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}