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CVE-2020-20136

nvd nist
Published: Dec 14, 2020Modified: Jun 17, 2026

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

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.

Affected (1)

Products: Quantconnect: Lean
Quantconnect
1 product
Lean
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Lean
From 2.3.0.0 to 2.4.0.1

Related CWEs

CWE-502
Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

References (2)

Source: cve@mitre.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.