How severe is CVE-2014-7839?

No CVSS score has been assigned to CVE-2014-7839 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2014-7839?

CVE-2014-7839 affects the following packages: org.jboss.resteasy:resteasy-jaxrs (Maven). Ecosystems affected: Maven.

How do I fix CVE-2014-7839?

Update org.jboss.resteasy:resteasy-jaxrs to 3.0.11.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-7839 is resolved across your whole dependency graph.

How do I detect CVE-2014-7839 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jboss.resteasy:resteasy-jaxrs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2014-7839 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2014-7839 actively exploited in the wild?

No public exploit code has been indexed for CVE-2014-7839 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2014-7839?

CVE-2014-7839 has an EPSS (Exploit Prediction Scoring System) score of 2.0%, placing it in the 80th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2014-7839?

CVE-2014-7839 is classified as Improper Input Validation (CWE-20). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2014-7839 published, and has it been updated?

CVE-2014-7839 was published on May 17, 2022 and was last updated on December 7, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2014-7839 — resteasy-jaxrs

Fix: resteasy/resteasy#611

CVE-2014-7839 is a Improper Input Validation vulnerability in org.jboss.resteasy:resteasy-jaxrs. A fix is available for org.jboss.resteasy:resteasy-jaxrs — see the affected versions and patch details below.

XML External Entity Reference in RESTEasy

Published

May 17, 2022

Updated

Dec 7, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.0%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs80th percentile — riskier than 80% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

☕org.jboss.resteasy:resteasy-jaxrs

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

DocumentProvider in RESTEasy 2.3.7 and 3.0.9 does not configure the (1) external-general-entities or (2) external-parameter-entities features, which allows remote attackers to conduct XML external entity (XXE) attacks via unspecified vectors.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jboss.resteasy:resteasy-jaxrs`	all versions	3.0.11.Final`org.jboss.resteasy:resteasy-jaxrs:3.0.11.Final`

Affected Products

1 product · 2 configurations

Application

resteasyredhat

2 versions

2.3.73.0.9

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jboss.resteasy:resteasy-jaxrs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jboss.resteasy:resteasy-jaxrs to 3.0.11.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-7839 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Red Hat Web Framework Kit has moved out of maintenance phase and is no longer supported by Red Hat Product Security. This issue is not currently planned to be addressed in any future updates. For additional information, refer to the Red Hat JBoss Middleware Product Update and Support Policy:…

Product	Fixed in	Advisory
Red Hat JBoss BPMS 6.0	`resteasy`	RHSA-2015:0851
Red Hat JBoss BRMS 6.0	`resteasy`	RHSA-2015:0850
Red Hat JBoss Data Grid 6.4	`resteasy`	RHSA-2015:0773
Red Hat JBoss Data Virtualization 6.1	see advisory	RHSA-2015:0675
Red Hat JBoss Enterprise Application Platform 6.3	see advisory	RHSA-2015:0215
Red Hat JBoss Enterprise Application Platform 6.3 for RHEL 5	`antlr-eap6-0:2.7.7-18.redhat_4.1.ep6.el5`	RHSA-2015:0216
Red Hat JBoss Enterprise Application Platform 6.3 for RHEL 6	`antlr-eap6-0:2.7.7-18.redhat_4.1.ep6.el6`	RHSA-2015:0217
Red Hat JBoss Enterprise Application Platform 6.3 for RHEL 7	`antlr-eap6-0:2.7.7-18.redhat_4.1.ep6.el7`	RHSA-2015:0218

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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