CVE-2022-31605Critical· 9.8▾ MidnightUnsafe yaml deserialization in NVFlare
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.4 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
1.9%
1.9% → 2.1%
NVFLARE contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). 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.
All versions before 2.1.2 are affected. CVSS Score = 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The patch will be included in nvflare==2.1.2
Change yaml.load() to yaml.safe_load()
Issue Found by: Oliver Sellwood (@Nintorac)
nvflare < 2.1.2Upgrade to a patched release:
nvflare 2.1.2Connected by shared product, vendor, weakness, or advisory.
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