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Fencer Vulns
high 7.5

CVE-2016-8739 json

Improper Restriction of XML External Entity Reference in Apache CXF JAX-RS

published 2017-08-10 9 y ago modified 2026-06-17 4 mo ago also GHSA-x7xf-253v-x3w8 , EUVD-2022-5744

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.3%
EPSS 7.3% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

The JAX-RS module in Apache CXF prior to 3.0.12 and 3.1.x prior to 3.1.9 provides a number of Atom JAX-RS MessageBodyReaders. These readers use Apache Abdera Parser which expands XML entities by default which represents a major XXE risk.

Patch / fix

  • maven org.apache.cxf:cxf-core 3.0.12, 3.1.9

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-2016-8739 updated cvss 6.5

apache-cxf: Atom entity provider of Apache CXF JAX-RS is vulnerable to XXE

  • Red Hat JBoss BRMS 5 cxf
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Fuse 6 cxf
    affected: no fix available
  • Red Hat JBoss SOA Platform 5 cxf
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 5 cxf Red Hat OpenShift Enterprise 2 cxf
    under investigation
  • Red Hat JBoss A-MQ 6.3 Red Hat JBoss Fuse 6.3
    fixed: vendor fix RHSA-2017:0868
  • Red Hat BPM Suite 6 cxf Red Hat JBoss BRMS 6 cxf Red Hat JBoss Data Grid 6 cxf Red Hat JBoss Data Virtualization 6 cxf Red Hat JBoss Enterprise Application Platform 6 cxf Red Hat JBoss Enterprise Application Platform 7 cxf
    +4 more products
    Red Hat JBoss Fuse Service Works 6 cxf Red Hat JBoss Operations Network 3 cxf Red Hat JBoss Portal 6 cxf Red Hat Single Sign-On 7 cxf
    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

7.32% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:C/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.cxf:cxf-core
<3.0.12
>=3.1.0, <3.1.9
3.0.12
3.1.9

Affected products

  • Apache Software Foundation Apache CXF

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.