Improper Restriction of XML External Entity Reference in jackson-mapper-aslGHSA-r6j9-8759-g62w
HIGHGHSA-r6j9-8759-g62w is a high-severity (CVSS 7.5) XML External Entity (XXE) vulnerability in org.codehaus.jackson:jackson-mapper-asl. EPSS puts its 30-day exploitation probability at 17.0% (97th percentile). The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.codehaus.jackson:jackson-mapper-aslReal-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
A flaw was found in org.codehaus.jackson:jackson-mapper-asl:1.9.x libraries. XML external entity vulnerabilities similar to CVE-2016-3720 also affects codehaus jackson-mapper-asl libraries but in different classes.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.codehaus.jackson:jackson-mapper-asl | all versions | No fix |
Affected Products
sparkapachedebian linuxdebianjackson-mapper-aslfasterxmljboss enterprise application platformredhatjboss fuseredhatDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.codehaus.jackson:jackson-mapper-asl, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of org.codehaus.jackson:jackson-mapper-asl for GHSA-r6j9-8759-g62w. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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 Hat OpenStack Platform ships OpenDaylight, which contains the vulnerable jackson-databind. However, OpenDaylight does not expose jackson-databind in a way that would make it vulnerable, lowering the impact of the vulnerability for OpenDaylight. As such, Red Hat will not be providing a fix for OpenDaylight at this…
| Product | Fixed in | Advisory |
|---|---|---|
| EAP-CD 20 Tech Preview | jackson-mapper-asl | RHSA-2020:3585 |
| Red Hat Data Grid 7.3.7 | jackson-mapper-asl | RHSA-2020:3779 |
| Red Hat Fuse 7.7.0 | jackson-mapper-asl | RHSA-2020:3192 |
| Red Hat JBoss EAP 7.2 | jackson-mapper-asl | RHSA-2020:2061 |
| Red Hat JBoss Enterprise Application Platform 7 | jackson-mapper-asl | RHSA-2020:2515 |
| Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 6 | eap7-activemq-artemis-0:2.9.0-4.redhat_00010.1.el6eap | RHSA-2020:2058 |
| Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 7 | eap7-activemq-artemis-0:2.9.0-4.redhat_00010.1.el7eap | RHSA-2020:2059 |
| Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 8 | eap7-activemq-artemis-0:2.9.0-4.redhat_00010.1.el8eap | RHSA-2020:2060 |
Frequently Asked Questions
Is GHSA-r6j9-8759-g62w in your dependencies?
Find it across Maven, including transitive dependencies.