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Fencer Vulns
high 7.5

CVE-2026-102276 json

brace-expansion: DoS via uncontrolled recursion in parseCommaParts causing stack exhaustion

published 2026-09-28 41 d ago modified 2026-09-30 39 d ago also GHSA-6j4f-fj2g-mc7p , EUVD-2026-88550

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10, crafted brace patterns can exhaust the native stack in parseCommaParts because parseCommaParts recursively processes the remainder once per brace group and uses push.apply to pass every element of a very large comma-part array as a function argument. Patterns containing many comma-separated brace groups trigger the recursive path, while the large array triggers the argument-array path without deep recursion. These paths cause recursive and argument-array native stack exhaustion before max or maxLength can limit output, potentially terminating the Node.js process in a process-terminating denial of service. This issue is fixed in versions 1.1.19, 2.1.5, 3.0.7, and 5.0.10.

Patch / fix

  • npm brace-expansion 1.1.19, 2.1.5, 3.0.7, 5.0.10
  • node-brace-expansion Debian 14 2.1.7+~1.1.2-1

debian advisories DEBIAN-CVE-2026-102276

  • nodejs26 hummingbird 1 26.11.1-0.4.hum1
  • nodejs26-bin hummingbird 1 26.11.1-0.4.hum1
  • nodejs26-npm hummingbird 1 11.20.0-1.26.11.1.0.4.hum1
  • nodejs26-libs hummingbird 1 26.11.1-0.4.hum1
  • nodejs26-npm-bin hummingbird 1 26.11.1-0.4.hum1
  • nodejs26-full-i18n hummingbird 1 26.11.1-0.4.hum1
  • nodejs26 hummingbird 1 26.10.0-0.3.hum1
  • nodejs26-bin hummingbird 1 26.10.0-0.3.hum1

red hat advisories RHSA-2026:84657RHSA-2026:74168RHSA-2026:74167RHSA-2026:74161

  • pi-coding-agent openSUSE Leap 16.0 1.0.4-bp160.1.1
  • pi-coding-agent openSUSE Tumbleweed 1.0.2-1.1

opensuse advisories openSUSE-SU-2026:22111-1openSUSE-SU-2026:12062-1

  • npm AlmaLinux 8 1:11.19.1-1.24.22.1.1.module_el8.10.0+4331+0683c9c1
  • nodejs AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-libs AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-nodemon AlmaLinux 8 3.1.14-2.module_el8.10.0+4250+09238ed4
  • nodejs-full-i18n AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-packaging AlmaLinux 8 2021.06-6.module_el8.10.0+4086+70facd4a
  • nodejs-packaging-bundler AlmaLinux 8 2021.06-6.module_el8.10.0+4086+70facd4a
  • npm AlmaLinux 9 1:11.19.1-1.24.22.1.3.module_el9.8.0+333+788f3075

almalinux advisories ALSA-2026:92376ALSA-2026:92378

  • nodejs Rocky Linux 9 1:24.22.1-3.module+el9.8.0+40401+e24b8c95
  • nodejs-nodemon Rocky Linux 9 3.1.14-3.module+el9.8.0+40281+14cc6568
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40165+d075e3f2
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.8.0+40164+8921ab53
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40052+e32ea525
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40153+4d595597
  • nodejs-nodemon Rocky Linux 8 3.1.14-2.module+el8.10.0+40277+b1b3f89e
  • nodejs-nodemon Rocky Linux 8 3.1.14-2.module+el8.10.0+40278+50b003a3

rocky linux advisories RLSA-2026:92378RLSA-2026:92376

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-102276 updated cvss 7.5

brace-expansion: brace-expansion: Denial of Service via stack exhaustion from crafted brace patterns

  • Red Hat Cost Management On Premise costmanagement/costmanagement-ui-rhel10 Red Hat Exploit Intelligence exploit-intelligence/vulnerability-analysis-rhel9 Red Hat Migration Toolkit for Applications 8 mta/mta-ui-rhel9, mta/mta-nodejs-external-provider-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-ui-rhel8 Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel8, workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9, openshift-pipelines/pipelines-console-plugin-rhel8, openshift-pipelines/pipelines-console-plugin-pf5-rhel9
    +1 more products
    Red Hat AMQ Broker 7 amq-broker-maven-repository.zip
    affected: workaround, no fix available
  • Red Hat Ansible Automation Platform 2 automation-gateway, automation-controller, automation-platform-ui, automation-eda-controller
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of Apache Camel - HawtIO 4 rhaf-hawtio-maven-repository.zip Red Hat build of Apicurio Registry 3 apicurio/apicurio-registry-ui-rhel8, apicurio/apicurio-registry-ui-rhel9 Red Hat Build of Keycloak rhbk-quarkus-dist.zip, keycloak-operator.redhat-00001.zip, keycloak-operator.redhat-00003.zip Red Hat Build of Podman Desktop rh-podman-desktop
    affected: workaround, no fix available
  • Red Hat Ceph Storage 4 cockpit-ceph-installer Red Hat Ceph Storage 9 libarrow, parquet-libs
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Certification Program for Red Hat Enterprise Linux 9 redhat-certification-cnf Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9
    affected: workaround, no fix available
  • Red Hat Data Grid 8 redhat-datagrid-maven-repository.zip
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9, rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Directory Server 11 389-ds-base Red Hat Directory Server 12 389-ds-base Red Hat Directory Server 13 389-ds-base
    affected: workaround, no fix planned “Will not fix”
show 9 more
  • Red Hat Enterprise Linux 7 rhsm-gtk, python-syspurpose, subscription-manager, subscription-manager-gui, subscription-manager-rhsm, subscription-manager-cockpit, +5 more Red Hat Enterprise Linux 8 npm, rls, rust, cargo, clippy, nodejs, +31 more Red Hat Enterprise Linux 9 gjs, npm, rust, cargo, clippy, nodejs, +26 more Red Hat Enterprise Linux 10 nodejs22, nodejs24, nodejs26, linux-sgx, nodejs-nodemon, cockpit-image-builder Red Hat Enterprise Linux AI (RHEL AI) 3 rust, rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9
    affected: workaround, no fix available
  • Red Hat Fuse 7 brace-expansion -
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images nodejs25 25.9.0-1.6.hum1, nodejs20 20.20.2-1.2.hum1
    affected: workaround, no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 7 jboss-eap-patch.zip, jboss-eap-maven-repository.zip, jboss-eap-full-maven-repository.zip, jboss-eap-runtime-maven-repository.zip, jboss-eap-incremental-maven-repository.zip
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-core-bff-rhel9, rhoai/odh-dashboard-operator-rhel9, rhoai/odh-mod-arch-agent-ops-rhel9, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 Red Hat OpenShift Container Platform 4 openshift4/ose-console-rhel9, openshift4/ose-monitoring-plugin-rhel9, openshift4/nmstate-console-plugin-rhel9, openshift4/ose-agent-installer-ui-rhel9 Red Hat OpenShift Container Platform 5 openshift5/ose-console-rhel9 Red Hat Openshift Data Foundation 4 odf4/odf-console-rhel9, odf4/ocs-client-console-rhel9, rhceph-dev/odf4-mcg-core-rhel9, rhceph-dev/odf4-odf-console-rhel9, odf4/odf-multicluster-console-rhel9, rhceph-dev/odf4-ocs-client-console-rhel9, +1 more Red Hat OpenShift Dev Spaces devspaces/udi-rhel9, devspaces/code-rhel9, devspaces/openvsx-rhel9, devspaces/dashboard-rhel9, devspaces/jetbrains-ide-rhel9, devspaces/pluginregistry-rhel9 Red Hat Quay 3 quay/quay-rhel8, quay/quay-rhel9
    +1 more products
    Red Hat Satellite 6 satellite/iop-advisor-frontend-rhel9, satellite/iop-vulnerability-frontend-rhel9, satellite/iop-host-inventory-frontend-rhel9
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 rh-sso-server-dist.zip
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal, ansible-automation-platform/bootc-automation-portal-rhel9
    affected: workaround, no fix available
  • Red Hat Cluster Observability Operator 1.5 cluster-observability-operator/logging-console-plugin-rhel9 1793660293, cluster-observability-operator/logging-console-plugin-rhel9 1793839292, cluster-observability-operator/logging-console-plugin-pf4-rhel9 1793660952, cluster-observability-operator/logging-console-plugin-pf4-rhel9 1793824934, cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9 1793661804, cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9 1793823428
    fixed: vendor fix RHSA-2026:95591
  • Red Hat Cryostat 4 on RHEL 9 cryostat/cryostat-openshift-console-plugin-rhel9 4.2.0-19
    fixed: vendor fix RHSA-2026:95360

8 more fixed, 25 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
40 d ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm brace-expansion
>=4.0.0, <5.0.10
>=3.0.0, <3.0.7
>=2.0.0, <2.1.5
<1.1.19
5.0.10
3.0.7
2.1.5
1.1.19

Affected products

  • juliangruber brace-expansion

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-674 Uncontrolled Recursion

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.