GHSA-W6W4-RJH9-9R58 c3p0 can, in combination with other libraries, compose to a "sink" for deserialization gadgets

Impact The JDBC spec defines the interface DataSource, with a method called getConnection, and ConnectionPoolDataSource, with a method called getPooledConnection. These methods are potentially dangerous. One way or another they trigger calls into JDBC drivers, which themselves are complicated,...

CVE-2026-27830: Deserialization of Untrusted Data

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map . Prior to...