How severe is GHSA-r9vv-xj4w-g8m8?

GHSA-r9vv-xj4w-g8m8 has a CVSS score of 7.2/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-r9vv-xj4w-g8m8?

GHSA-r9vv-xj4w-g8m8 affects the following packages: org.apache.activemq:artemis-pom (Maven). Ecosystems affected: Maven.

How do I fix GHSA-r9vv-xj4w-g8m8?

Update org.apache.activemq:artemis-pom to 1.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r9vv-xj4w-g8m8 is resolved across your whole dependency graph.

How do I detect GHSA-r9vv-xj4w-g8m8 in my Maven dependencies?

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

How do I mitigate GHSA-r9vv-xj4w-g8m8 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.

How does O3 Security protect against GHSA-r9vv-xj4w-g8m8?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-r9vv-xj4w-g8m8 can be triaged on real exposure rather than presence alone.

Is GHSA-r9vv-xj4w-g8m8 actively exploited in the wild?

Yes. There are 1 known exploit references for GHSA-r9vv-xj4w-g8m8, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-r9vv-xj4w-g8m8?

GHSA-r9vv-xj4w-g8m8 has an EPSS (Exploit Prediction Scoring System) score of 6.9%, placing it in the 94th 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 GHSA-r9vv-xj4w-g8m8?

GHSA-r9vv-xj4w-g8m8 is classified as Deserialization of Untrusted Data (CWE-502). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-r9vv-xj4w-g8m8 published, and has it been updated?

GHSA-r9vv-xj4w-g8m8 was published on May 13, 2022 and was last updated on March 13, 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

HIGH severity

GHSA-r9vv-xj4w-g8m8 — artemis-pom

HIGH

GHSA-r9vv-xj4w-g8m8 is a high-severity (CVSS 7.2) Deserialization of Untrusted Data vulnerability in org.apache.activemq:artemis-pom. 1 public exploit reference exists, so weaponization risk is real. A fix is available for org.apache.activemq:artemis-pom — see the affected versions and patch details below.

Apache ActiveMQ Artemis RCE Via Deserialization Gadget Chain

Also known asCVE-2016-4978

Published

May 13, 2022

Updated

Mar 13, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

6.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs94th percentile — riskier than 94% of all scored CVEsHighest risk

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

GHSA-r9vv-xj4w-g8m8 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 377,333 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

1 pkg affected

☕org.apache.activemq:artemis-pom

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

The getObject method of the javax.jms.ObjectMessage class in the (1) JMS Core client, (2) Artemis broker, and (3) Artemis REST component in Apache ActiveMQ Artemis before 1.4.0 might allow remote authenticated users with permission to send messages to the Artemis broker to deserialize arbitrary objects and execute arbitrary code by leveraging gadget classes being present on the Artemis classpath.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.activemq:artemis-pom`	all versions	1.4.0`org.apache.activemq:artemis-pom:1.4.0`

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The getObject method of the javax.jms.ObjectMessage class in the (1) JMS…

lists.apache.orgNVDJan 2021

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.activemq:artemis-pom, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.activemq:artemis-pom to 1.4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r9vv-xj4w-g8m8 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 GHSA-r9vv-xj4w-g8m8 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-r9vv-xj4w-g8m8. 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.

Red HatModerate

Product	Fixed in	Advisory
Red Hat JBoss EAP 7	see advisory	RHSA-2017:1836
Red Hat JBoss EAP 7	see advisory	RHSA-2017:3456
Red Hat JBoss Enterprise Application Platform 6.4	`hornetq`	RHSA-2018:1447
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 5	`codehaus-jackson-0:1.9.9-12.redhat_6.1.ep6.el5`	RHSA-2018:1450
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6	`codehaus-jackson-0:1.9.9-12.redhat_6.1.ep6.el6`	RHSA-2018:1449
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6	`jboss-ec2-eap-0:7.5.20-1.Final_redhat_1.ep6.el6`	RHSA-2018:1451
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7	`codehaus-jackson-0:1.9.9-12.redhat_6.1.ep6.el7`	RHSA-2018:1448
Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6	`eap7-activemq-artemis-0:1.1.0-18.SP21_redhat_1.1.ep7.el6`	RHSA-2017:1834

Frequently Asked Questions

The getObject method of the `javax.jms.ObjectMessage` class in the (1) JMS Core client, (2) Artemis broker, and (3) Artemis REST component in Apache ActiveMQ Artemis before 1.4.0 might allow remote authenticated users with permission to send messages to the Artemis broker to deserialize arbitrary objects and execute arbitrary code by leveraging gadget classes being present on the Artemis classpath.

O3 Security · Impact-Aware SCA

Is GHSA-r9vv-xj4w-g8m8 in your dependencies?

O3 Security finds GHSA-r9vv-xj4w-g8m8 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works