Description
NHibernate is an object-relational mapper for the .NET framework. A SQL injection vulnerability exists in some types implementing ILiteralType.ObjectToSQLString. Callers of these methods are exposed to the vulnerability, which includes mappings using inheritance with discriminator values; HQL queries referencing a static field of the application; users of the SqlInsertBuilder and SqlUpdateBuilder utilities, calling their AddColumn overload taking a literal value; and any direct use of the ObjectToSQLString methods for building SQL queries on the user side. This vulnerability is fixed in 5.4.9 and 5.5.2.
References
https://github.com/nhibernate/nhibernate-core/security/advisories/GHSA-fg4q-ccq8-3r5q
https://github.com/nhibernate/nhibernate-core/issues/3516
https://github.com/nhibernate/nhibernate-core/pull/3517
https://github.com/nhibernate/nhibernate-core/pull/3547
https://github.com/nhibernate/nhibernate-core/commit/b4a69d1a5ff5744312478d70308329af496e4ba9
