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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-02-24T22:40:06.444Z

Updated: 2024-08-03T03:43:46.390Z

Reserved: 2022-01-19T21:23:53.793Z

Link: CVE-2022-23535

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-02-24T23:15:10.663

Modified: 2023-11-07T03:44:12.733

Link: CVE-2022-23535

cve-icon Redhat

No data.