CVE-2017-7561 — resteasy-jaxrs
HIGHCVE-2017-7561 is a high-severity (CVSS 7.5) 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.
Inconsistent Interpretation of HTTP Requests in Red Hat JBoss EAP
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2017-7561 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.jboss.resteasy:resteasy-jaxrs☕org.jboss.resteasy:resteasy-jaxrsReal-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
Red Hat JBoss EAP version 3.0.7.Final until 3.0.25.Final, 3.5.0.CR1, and 4.0.0.Beta1 is vulnerable to a server-side cache poisoning or CORS requests in the JAX-RS component resulting in a moderate impact.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jboss.resteasy:resteasy-jaxrs | ≥ 3.0.7.Final&&< 3.0.25.Final | 3.0.25.Finalorg.jboss.resteasy:resteasy-jaxrs:3.0.25.Final |
| ☕Maven | org.jboss.resteasy:resteasy-jaxrs | ≥ 3.1.4.Final&&< 3.5.0.CR1 | 3.5.0.CR1org.jboss.resteasy:resteasy-jaxrs:3.5.0.CR1 |
Detection & mitigation playbook
Open-source dependencyDetect
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 3.0.25.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-7561 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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2017-7561 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2017-7561. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
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.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat JBoss EAP 7 | resteasy | RHSA-2018:0003 |
| Red Hat JBoss EAP 7 | resteasy | RHSA-2018:0478 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 | eap7-activemq-artemis-0:1.1.0-19.SP24_redhat_1.1.ep7.el6 | RHSA-2018:0002 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 | eap7-jboss-ec2-eap-0:7.0.9-2.GA_redhat_2.ep7.el6 | RHSA-2018:0005 |
| Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7 | eap7-activemq-artemis-0:1.1.0-19.SP24_redhat_1.1.ep7.el7 | RHSA-2018:0004 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 | eap7-activemq-artemis-0:1.5.5.009-1.redhat_1.1.ep7.el6 | RHSA-2018:0479 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 6 | eap7-jboss-ec2-eap-0:7.1.1-3.1.GA_redhat_3.ep7.el6 | RHSA-2018:0481 |
| Red Hat JBoss Enterprise Application Platform 7.1 for RHEL 7 | eap7-activemq-artemis-0:1.5.5.009-1.redhat_1.1.ep7.el7 | RHSA-2018:0480 |
Frequently Asked Questions
Is CVE-2017-7561 in your dependencies?
O3 Security finds CVE-2017-7561 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.