Vulnerability · Published Jul 1, 2026 · Assigned by GitHub_M
CVE-2026-55153mchange-commons-java contains elements susceptible to abuse via JNDI injection and "deserialization gadgets"
High 7.1
In plain English
A high-severity unsafe deserialization in mchange-commons-java from swaldman. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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) will construct objects of arbitrary classes and initialize "JavaBean"-style properties, which for certain classes enables JNDI injection and "deserialization gadgets." Such initialization is unsafe for some classes: for example, setting the contentType property of a Swing JEditorPane to text/html and its text property to HTML containing a stylesheet <link> will provoke an HTTP GET on an arbitrary URL, potentially from within a trusted security domain. The problem is aggravated by the library's ReferenceIndirector, through which malicious JNDI Reference objects can be smuggled in for dereferencing wherever an application reads a Java-serialized object. This has been resolved in version 0.6.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | com.mchange:mchange-commons-java | 0.6.0 | GHSA-h84g-69h7-mw6v |
| Ubuntu:25.10 | c3p0 | no fix listed | UBUNTU-CVE-2026-55153 |
| Ubuntu:26.10 | c3p0 | no fix listed | UBUNTU-CVE-2026-55153 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| swaldman | mchange-commons-java | < 0.6.0 |
Weakness: CWE-502, CWE-470 · Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H