What’s Vulnerable › Vulnerabilities
CVE-2020-20136
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-12-14 · updated 2026-06-17
- Weakness: CWE-502
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 products
- Quantconnect Lean: from 2.3.0.0 through 2.4.0.1
References
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