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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-2391

27
FAUCET Score

CVE-2026-2391 describes a denial-of-service vulnerability in the 'qs' library, specifically affecting versions where the 'comma' option is enabled. Attackers can bypass the 'arrayLimit' enforcement by sending a single parameter with numerous comma-separated values, leading to excessive memory allocation and potential system crashes. This vulnerability carries a CVSS score of 7.5 (High) due to its network attack vector, low attack complexity, and high impact on availability. While there are no known active exploits or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion, indicating awareness among developers.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.7.0, < 6.14.2CPE matchmatch criteria
cpe:2.3:a:qs_project:qs:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

6.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 17th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (87)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: qsFixed in: 6.14.2
redhatvendor investigatingvia redhat_api
Product: Cryostat 4Fixed in: io.cryostat-cryostat
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/cluster-logging-operator-bundle
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/cluster-logging-rhel9-operator
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/elasticsearch6-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/elasticsearch-operator-bundle
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/elasticsearch-proxy-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/elasticsearch-rhel9-operator
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/eventrouter-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/fluentd-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/kibana6-rhel8
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/log-file-metric-exporter-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/logging-curator5-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/logging-view-plugin-rhel9
redhatvendor investigatingvia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/vector-rhel9
redhatvendor investigatingvia redhat_api
Product: Migration Toolkit for Applications 8Fixed in: mta/mta-ui-rhel9
redhatvendor investigatingvia redhat_api
Product: Node HealthCheck OperatorFixed in: workload-availability/node-remediation-console-rhel8
redhatvendor investigatingvia redhat_api
Product: OpenShift LightspeedFixed in: openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9
redhatvendor investigatingvia redhat_api
Product: OpenShift LightspeedFixed in: openshift-lightspeed/lightspeed-console-plugin-rhel9
redhatvendor investigatingvia redhat_api
Product: OpenShift PipelinesFixed in: openshift-pipelines/pipelines-hub-api-rhel8
redhatvendor investigatingvia redhat_api
Product: OpenShift PipelinesFixed in: openshift-pipelines/pipelines-hub-db-migration-rhel8
redhatvendor investigatingvia redhat_api
Product: OpenShift PipelinesFixed in: openshift-pipelines/pipelines-hub-ui-rhel8
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp20/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp21/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp22/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp24/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp25/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp26/system
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel7
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel8
redhatvendor investigatingvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp2/system-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/volsync-operator-bundle
redhatvendor investigatingvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/volsync-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat AMQ Broker 7Fixed in: org.jolokia-jolokia-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat Ansible Automation Platform 2Fixed in: ansible-automation-platform-24/lightspeed-rhel8
redhatvendor investigatingvia redhat_api
Product: Red Hat Ansible Automation Platform 2Fixed in: ansible-automation-platform-25/lightspeed-rhel8
redhatvendor investigatingvia redhat_api
Product: Red Hat Ansible Automation Platform 2Fixed in: ansible-automation-platform/automation-dashboard-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat build of Apache Camel - HawtIO 4Fixed in: io.hawt-project
redhatvendor investigatingvia redhat_api
Product: Red Hat build of Apicurio Registry 2Fixed in: io.apicurio-apicurio-registry
redhatvendor investigatingvia redhat_api
Product: Red Hat build of OptaPlanner 8Fixed in: org.optaweb.vehiclerouting-optaweb-vehicle-routing
redhatvendor investigatingvia redhat_api
Product: Red Hat Data Grid 8Fixed in: org.infinispan-infinispan-console
redhatvendor investigatingvia redhat_api
Product: Red Hat Developer HubFixed in: rhdh/rhdh-hub-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Discovery 2Fixed in: discovery/discovery-ui-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: gjs
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: linux-sgx
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: mozjs60
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: pcs
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: firefox
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: gjs
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: linux-sgx
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: pcs
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: polkit
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: thunderbird
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.apicurio-apicurito
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.hawt-hawtio-integration
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.hawt-hawtio-online
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.hawt-project
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.syndesis-syndesis-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat Fuse 7Fixed in: io.syndesis-syndesis-ui
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: io.hawt-project
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: org.jboss.hal-hal-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 8Fixed in: io.hawt-project
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 8Fixed in: io.smallrye-smallrye-open-api-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 8Fixed in: org.keycloak-keycloak-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Expansion PackFixed in: io.hawt-project
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Expansion PackFixed in: io.smallrye-smallrye-open-api-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Expansion PackFixed in: org.keycloak-keycloak-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-data-science-pipelines-argo-argoexec-rhel8
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-console-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Openshift Data Foundation 4Fixed in: odf4/mcg-core-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Dev SpacesFixed in: devspaces/dashboard-rhel9
redhatvendor investigatingvia redhat_api
Product: Red Hat Process Automation 7Fixed in: org.kie-process-migration-service
redhatvendor investigatingvia redhat_api
Product: Red Hat Process Automation 7Fixed in: org.kie.workbench-kie-wb-common
redhatvendor investigatingvia redhat_api
Product: Red Hat Process Automation 7Fixed in: org.uberfire-uberfire-parent
redhatvendor investigatingvia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8
redhatvendor investigatingvia redhat_api
Product: streams for Apache Kafka 2Fixed in: com.github.streamshub-console
redhatvendor investigatingvia redhat_api
Product: streams for Apache Kafka 3Fixed in: com.github.streamshub-console
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel8
redhatvendor investigatingvia redhat_api
Product: Cryostat 4Fixed in: cryostat/cryostat-openshift-console-plugin-rhel9

Vendor Advisories (2)

npmGHSA-w7fw-mjwx-w883low

qs's arrayLimit bypass in comma parsing allows denial of service

Feb 12, 2026
redhatCVE-2026-2391Moderate

qs: qs's arrayLimit bypass in comma parsing allows denial of service

Feb 12, 2026

References

github.com / ljharb/qs/commit/f6a7abff1f13d644db9b05fe4f2c98ada6bf8482
Patch
github.com / ljharb/qs/security/advisories/GHSA-w7fw-mjwx-w883
ExploitVendor Advisory