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CVE-2026-55153

Medium priority
Needs evaluation

mchange-commons-java is a Java library of shared utility classes used by mchange projects like the c3p0 connection pool. Prior to version 0.6.0, its JNDI ObjectFactory implementation (com.mchange.v2.naming.JavaBeanObjectFactory)...

1 affected package

c3p0

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
c3p0 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-55223

Medium priority
Needs evaluation

c3p0 is a JDBC Connection pooling library. In versions prior to 0.14.0, c3p0 in combination with other libraries, can compose to a "sink" for deserialization gadgets. The JDBC spec's DataSource.getConnection()...

1 affected package

c3p0

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
c3p0 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-27830

Medium priority
Needs evaluation

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...

1 affected package

c3p0

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
c3p0 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2019-5427

Medium priority

Some fixes available 9 of 17

c3p0 version < 0.9.5.4 may be exploited by a billion laughs attack when loading XML configuration due to missing protections against recursive entity expansion when loading configuration.

1 affected package

c3p0

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
c3p0 Fixed Fixed Fixed Fixed
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CVE-2018-20433

Medium priority
Fixed

c3p0 0.9.5.2 allows XXE in extractXmlConfigFromInputStream in com/mchange/v2/c3p0/cfg/C3P0ConfigXmlUtils.java during initialization.

1 affected package

c3p0

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
c3p0 Fixed
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