# CVE-2026-27727: libc3p0-java: mchange-commons-java, a library that provides Java utilities, includes code that mirrors early implementations of JND...

CVE-2026-27727 is fixed in 3 products on 1 platform, first by SUSE-SU-2026:0855-1, released March 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-27727
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0098
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 25, 2026

## Description

mchange-commons-java, a library that provides Java utilities, includes code that mirrors early implementations of JNDI functionality, including support for remote `factoryClassLocation` values, by which code can be downloaded and invoked within a running application. If an attacker can provoke an application to read a maliciously crafted `jaxax.naming.Reference` or serialized object, they can provoke the download and execution of malicious code. Implementations of this functionality within the JDK were disabled by default behind a System property that defaults to `false`, `com.sun.jndi.ldap.object.trustURLCodebase`. However, since mchange-commons-java includes an independent implementation of JNDI derefencing, libraries (such as c3p0) that resolve references via that implementation could be provoked to download and execute malicious code even after the JDK was hardened. Mirroring the JDK patch, mchange-commons-java's JNDI functionality is gated by configuration parameters that default to restrictive values starting in version 0.4.0. No known workarounds are available. Versions prior to 0.4.0 should be avoided on application CLASSPATHs.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | c3p0 opensuse-leap 15.6 | 0.9.5.5-150400.3.5.1 | [SUSE-SU-2026:0855-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0855-1.md) | Mar 10, 2026 |
| Linux | libc3p0-java Ubuntu 18.04.6 LTS (bionic) | 0.9.1.2-9+deb8u1ubuntu0.18.04.1+esm1 | [libc3p0-java 0.9.1.2-9+deb8u1ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libc3p0-java-0.9.1.2-9-deb8u1ubuntu0.18.04.1-esm1.md) | Jul 1, 2026 |
| Linux | libc3p0-java Ubuntu 20.04 LTS (focal) | 0.9.1.2-10ubuntu0.20.04.1+esm1 | [libc3p0-java 0.9.1.2-10ubuntu0.20.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libc3p0-java-0.9.1.2-10ubuntu0.20.04.1-esm1.md) | Jul 1, 2026 |
| Linux | libc3p0-java Ubuntu 22.04.1 LTS (jammy) | 0.9.1.2-10ubuntu1+esm1 | [libc3p0-java 0.9.1.2-10ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libc3p0-java-0.9.1.2-10ubuntu1-esm1.md) | Jul 1, 2026 |
| Linux | libc3p0-java Ubuntu 24.04.5 LTS (noble) | 0.9.1.2-10ubuntu2+esm1 | [libc3p0-java 0.9.1.2-10ubuntu2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libc3p0-java-0.9.1.2-10ubuntu2-esm1.md) | Jul 1, 2026 |
| Linux | libc3p0-java Ubuntu 26.04.1 LTS (resolute) | 0.9.1.2-11ubuntu0.1~esm1 | [libc3p0-java 0.9.1.2-11ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libc3p0-java-0.9.1.2-11ubuntu0.1-esm1.md) | Jul 1, 2026 |
| Linux | mchange-commons opensuse-leap 15.6 | 0.2.20-150400.3.3.1 | [SUSE-SU-2026:0855-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0855-1.md) | Mar 10, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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