CVE-2016-3092 — commons-fileupload
HIGHCVE-2016-3092 is a high-severity (CVSS 7.5) Improper Input Validation vulnerability in commons-fileupload:commons-fileupload. EPSS puts its 30-day exploitation probability at 37.2% (99th percentile). A fix is available for commons-fileupload:commons-fileupload — see the affected versions and patch details below.
High severity vulnerability that affects commons-fileupload:commons-fileupload
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2016-3092.
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
commons-fileupload:commons-fileuploadReal-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 MultipartStream class in Apache Commons Fileupload before 1.3.2, as used in Apache Tomcat 7.x before 7.0.70, 8.x before 8.0.36, 8.5.x before 8.5.3, and 9.x before 9.0.0.M7 and other products, allows remote attackers to cause a denial of service (CPU consumption) via a long boundary string.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | commons-fileupload:commons-fileupload | all versions | 1.3.2commons-fileupload:commons-fileupload:1.3.2 |
Affected Products
commons fileuploadapachetomcatapacheubuntu linuxcanonicaldebian linuxdebianicewall identity managerhpicewall sso agent optionhpDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for commons-fileupload:commons-fileupload, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update commons-fileupload:commons-fileupload to 1.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2016-3092 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.
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 Enterprise Linux 7 | tomcat-0:7.0.69-10.el7 | RHSA-2016:2599 |
| Red Hat JBoss Enterprise Application Platform 6.4 | see advisory | RHSA-2016:2071 |
| Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 5 | apache-cxf-0:2.7.18-4.SP3_redhat_1.1.ep6.el5 | RHSA-2016:2070 |
| Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6 | apache-cxf-0:2.7.18-4.SP3_redhat_1.1.ep6.el6 | RHSA-2016:2068 |
| Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6 | jboss-ec2-eap-0:7.5.11-1.Final_redhat_1.ep6.el6 | RHSA-2016:2072 |
| Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7 | apache-cxf-0:2.7.18-4.SP3_redhat_1.1.ep6.el7 | RHSA-2016:2069 |
| Red Hat JBoss Enterprise Web Server 2 for RHEL 6 | tomcat7-0:7.0.54-23_patch_05.ep6.el6 | RHSA-2016:2807 |
| Red Hat JBoss Web Server 2.1 | tomcat7 | RHSA-2016:2808 |
Frequently Asked Questions
Is CVE-2016-3092 in your dependencies?
Find it across Maven, including transitive dependencies.