CVE-2022-23535

HIGH

LiteDB < 5.0.13 - Deserialization of Untrusted Data via BsonDocument _type Field

Title source: llm
STIX 2.1

Description

LiteDB is a small, fast and lightweight .NET NoSQL embedded database. Versions prior to 5.0.13 are subject to Deserialization of Untrusted Data. LiteDB uses a special field in JSON documents to cast different types from `BsonDocument` to POCO classes. When instances of an object are not the same of class, `BsonMapper` use a special field `_type` string info with full class name with assembly to be loaded and fit into your model. If your end-user can send to your app a plain JSON string, deserialization can load an unsafe object to fit into your model. This issue is patched in version 5.0.13 with some basic fixes to avoid this, but is not 100% guaranteed when using `Object` type. The next major version will contain an allow-list to select what kind of Assembly can be loaded. Workarounds are detailed in the vendor advisory.

Scores

CVSS v3 7.3
EPSS 0.0117
EPSS Percentile 78.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (2)
litedb/litedb < 5.0.13
nuget/LiteDB 0 - 5.0.13NuGet
Published Feb 24, 2023
Tracked Since Feb 18, 2026