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Fencer Vulns
critical 9.8

CVE-2018-20433 json

XML External Entity Reference in mchange:c3p0

published 2018-12-24 7 y ago modified 2026-06-17 4 mo ago also GHSA-q485-j897-qc27 , EUVD-2019-0193

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

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

Patch / fix

  • maven com.mchange:c3p0 0.9.5.3
  • c3p0 Debian 14, Debian 13, Debian 12 0.9.1.2-10

debian advisories DEBIAN-CVE-2018-20433

  • c3p0 Ubuntu 14.04 LTS 0.9.1.2-9+deb8u1build0.14.04.1
  • c3p0 Ubuntu 16.04 LTS 0.9.1.2-9+deb8u1build0.16.04.1
  • c3p0 Ubuntu 18.04 LTS 0.9.1.2-9+deb8u1build0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-20433

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • c3p0 Manager Server Module 4.2 0.9.5.5-150300.4.6.1
  • smdba Manager Server Module 4.2 1.7.10-0.150300.3.3.1
  • rhnlib Manager Server Module 4.2 4.2.6-150300.4.9.1
  • mgr-osad Manager Server Module 4.2 4.2.8-150300.2.9.1
  • mgr-push Manager Server Module 4.2 4.2.5-150300.2.9.1
  • spacecmd Manager Server Module 4.2 4.2.16-150300.4.18.1
  • susemanager Manager Server Module 4.2 4.2.28-150300.3.22.1
  • spacewalk-web Manager Server Module 4.2 4.2.26-150300.3.18.2

suse advisories SUSE-SU-2022:1397-1SUSE-SU-2022:0798-1

  • c3p0 openSUSE Tumbleweed 0.9.5.5-1.3

opensuse advisories openSUSE-SU-2024:10669-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-20433 updated cvss 7.3

c3p0: XML external entity processing in extractXmlConfigFromInputStream

  • Red Hat BPM Suite 6 c3p0
    affected: no fix planned “Out of support scope”
  • Red Hat Fuse 7 c3p0
    affected: no fix planned “Will not fix”
  • Red Hat JBoss BRMS 5 c3p0 Red Hat JBoss Data Virtualization 6 c3p0 Red Hat JBoss Enterprise Application Platform 5 c3p0 Red Hat JBoss Enterprise Web Server 2 c3p0 Red Hat JBoss Fuse 6 c3p0 Red Hat JBoss SOA Platform 5 c3p0
    +2 more products
    Red Hat JBoss Web Server 3 c3p0 Red Hat Mobile Application Platform 4 millicore
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) opendaylight Red Hat OpenStack Platform 14 (Rocky) opendaylight Red Hat Satellite 5 c3p0 Red Hat Storage 3 rhevm-dependencies Red Hat Subscription Asset Manager c3p0
    affected: no fix planned “Will not fix”
  • Red Hat Decision Manager 7 c3p0 Red Hat JBoss Data Grid 7 c3p0 Red Hat JBoss Web Server 5 c3p0 Red Hat OpenShift Application Runtimes c3p0 Red Hat Process Automation 7 c3p0 Red Hat Satellite 6 candlepin, candlepin-selinux
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.59% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven com.mchange:c3p0
<0.9.5.3
0.9.5.3

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.