CVE-2019-10086 — commons-beanutils
HIGHCVE-2019-10086 is a high-severity (CVSS 7.3) Deserialization of Untrusted Data vulnerability in commons-beanutils:commons-beanutils. EPSS puts its 30-day exploitation probability at 29.2% (98th percentile). A fix is available for commons-beanutils:commons-beanutils — see the affected versions and patch details below.
Insecure Deserialization in Apache Commons Beanutils
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-2019-10086 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 378,156 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
commons-beanutils:commons-beanutilsReal-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
In Apache Commons Beanutils 1.9.2, a special BeanIntrospector class was added which allows suppressing the ability for an attacker to access the classloader via the class property available on all Java objects. We, however were not using this by default characteristic of the PropertyUtilsBean.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | commons-beanutils:commons-beanutils | all versions | 1.9.4commons-beanutils:commons-beanutils:1.9.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for commons-beanutils:commons-beanutils, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update commons-beanutils:commons-beanutils to 1.9.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-10086 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-2019-10086 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2019-10086. 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 |
|---|---|---|
| EAP-CD 19 Tech Preview | commons-beanutils | RHSA-2020:2333 |
| Red Hat Data Grid 7.3.6 | commons-beanutils | RHSA-2020:2321 |
| Red Hat Decision Manager 7 | commons-beanutils | RHSA-2020:0899 |
| Red Hat Enterprise Linux 7 | apache-commons-beanutils-0:1.8.3-15.el7_7 | RHSA-2020:0194 |
| Red Hat Enterprise Linux 8 | javapackages-tools:201801-8100020250616113255.88f2bc72 | RHSA-2025:9318 |
| Red Hat Fuse 6.3 | commons-beanutils | RHSA-2020:3587 |
| Red Hat Fuse 7.6.0 on EAP async | commons-beanutils | RHSA-2020:2619 |
| Red Hat Fuse 7.7.0 | see advisory | RHSA-2020:3192 |
Frequently Asked Questions
Is CVE-2019-10086 in your dependencies?
O3 Security finds CVE-2019-10086 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.