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Security Advisories: GSA_kwCzR0hTQS13dzdyLTI3OGgtNDhtaM4AAm33

QuantConnect Lean vulnerable to insecure deserialization

QuantConnect Lean versions from 2.3.0.0 to 2.4.0.1 are affected by an insecure deserialization vulnerability due to insecure configuration of TypeNameHandling property in Json.NET library. One may avoid this issue by only running Lean in an environment where data provided is trusted.

Permalink: https://github.com/advisories/GHSA-ww7r-278h-48mh
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS13dzdyLTI3OGgtNDhtaM4AAm33
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: about 2 years ago
Updated: 10 months ago


CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-ww7r-278h-48mh, CVE-2020-20136
References: Repository: https://github.com/QuantConnect/Lean
Blast Radius: 1.0

Affected Packages

nuget:QuantConnect.Common
Dependent packages: 24
Dependent repositories: 0
Downloads: 1,107,450 total
Affected Version Ranges: >= 2.3.0.0, <= 2.4.0.1
No known fixed version
All affected versions: