CVE-2017-18214 is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in moment. A fix is available for moment — see the affected versions and patch details below.
Regular Expression Denial of Service in moment
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
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
momentnpmDescription
Affected versions of moment are vulnerable to a low severity regular expression denial of service when parsing dates as strings.
Recommendation
Update to version 2.19.3 or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | moment | all versions | 2.19.3npm install moment@2.19.3 |
Affected Products
momentmomentjsnessustenableDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for moment, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update moment to 2.19.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-18214 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.
This issue affects the versions of momentjs as shipped with Red Hat Enterprise Satellite 5. Red Hat Product Security has rated this issue as having security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification:…
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform 7.4.9 | org.jboss.hal/hal-console:3.3.16.Final-redhat-00001 | RHSA-2023:0556 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | eap7-hal-console-0:3.3.16-1.Final_redhat_00001.1.el8eap | RHSA-2023:0553 |
| Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | eap7-hal-console-0:3.3.16-1.Final_redhat_00001.1.el9eap | RHSA-2023:0554 |
| Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 | eap7-hal-console-0:3.3.16-1.Final_redhat_00001.1.el7eap | RHSA-2023:0552 |
Frequently Asked Questions
Is CVE-2017-18214 in your dependencies?
Find it across npm, including transitive dependencies.