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CVE-2016-8739

22
FAUCET Score

CVE-2016-8739 describes an XML External Entity (XXE) vulnerability in the JAX-RS module of Apache CXF versions prior to 3.0.12 and 3.1.9. This flaw arises because the Atom JAX-RS MessageBodyReaders, utilizing Apache Abdera Parser, expand XML entities by default. With a CVSS v3 score of 7.5 (HIGH), this vulnerability allows an unauthenticated attacker to achieve high confidentiality impact over the network with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.11CPE matchmatch criteria
cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
3.1.0CPE matchmatch criteria
cpe:2.3:a:apache:cxf:3.1.0:*:*:*:*:*:*:*
3.1.1CPE matchmatch criteria
cpe:2.3:a:apache:cxf:3.1.1:*:*:*:*:*:*:*
3.1.2CPE matchmatch criteria
cpe:2.3:a:apache:cxf:3.1.2:*:*:*:*:*:*:*
3.1.3CPE matchmatch criteria
cpe:2.3:a:apache:cxf:3.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.32%
Probability of exploitation in next 30 days
EPSS Percentile
93.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0732 is in the 90th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

mavenpatch availablevia ghsa
Product: org.apache.cxf:cxf-coreFixed in: 3.0.12
mavenpatch availablevia ghsa
Product: org.apache.cxf:cxf-coreFixed in: 3.1.9
redhatpatch availablevia redhat_api
Product: Red Hat JBoss A-MQ 6.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Fuse 6.3
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: cxf
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 5Fixed in: cxf
redhatno patchvia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: cxf
redhatend of lifevia redhat_api
Product: Red Hat JBoss SOA Platform 5Fixed in: cxf
redhatend of lifevia redhat_api
Product: Red Hat JBoss BRMS 5Fixed in: cxf

Vendor Advisories (2)

mavenGHSA-x7xf-253v-x3w8high

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

May 13, 2022
redhatCVE-2016-8739Moderate

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

Dec 19, 2016

References

cxf.apache.org / security-advisories.data/CVE-2016-8739.txt.asc
PatchVendor Advisory
access.redhat.com / errata/RHSA-2017:0868
lists.apache.org / thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E
lists.apache.org / thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E
securityfocus.com / bid/97579
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037544
Third Party AdvisoryVDB Entry