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Fencer Intel
high 7.5

CVE-2026-73089 json

Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM

published 3mo ago modified 2mo ago also EUVD-2026-56600 , GHSA-c83g-rgw3-j3cx

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.

Patch / fix

  • npm browserslist 4.28.7
  • browserslist_project browserslist 4.28.7
  • node-browserslist Debian 14 4.28.7+~cs8.16.65-1

debian advisories DEBIAN-CVE-2026-73089

  • grafana12.4 hummingbird 1 12.4.8-0.1.1.hum1
  • grafana13.1 hummingbird 1 13.1.3-0.1.1.hum1

red hat advisories RHSA-2026:54518RHSA-2026:54517

  • agama-web-ui openSUSE Tumbleweed 24+0.a836cced5-52.1
  • python-pytest-html openSUSE Leap 16.0 4.1.1-bp160.5.1

opensuse advisories openSUSE-SU-2026:11680-1openSUSE-SU-2026:21602-1

Is CVE-2026-73089 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2026-73089 updated cvss 7.5

browserslist: Browserslist: Denial of Service via unbounded memory growth from distinct query results

  • Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-console-plugin-rhel9, openshift-lightspeed/lightspeed-agentic-console-rhel9, openshift-lightspeed/lightspeed-console-plugin-419-rhel9, openshift-lightspeed/lightspeed-console-plugin-pf5-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-rhel9, openshift-pipelines/pipelines-console-plugin-pf5-rhel9
    affected: workaround, no fix available
  • Red Hat Ansible Automation Platform 2 automation-eda-controller 1.0.11-1.el9ap, ansible-automation-platform-25/lightspeed-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of Apache Camel - HawtIO 4 browserslist 4.21.5 Red Hat Build of Podman Desktop rh-podman-desktop.git 1.1.0 Red Hat Ceph Storage 9 rhceph/alloy-rhel10 Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9 Red Hat Enterprise Linux 8 cockpit-composer
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rust 1.97.1-1.el10, rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 Red Hat OpenShift Container Platform 5 openshift5/nmstate-console-plugin-rhel9 Red Hat Openshift Data Foundation 4 odf4/odf-console-rhel9, odf4/ocs-client-console-rhel9, odf4/odf-multicluster-console-rhel9
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 browserslist 4.21.5 Red Hat Secrets Management Console for Red Hat OpenShift external-secrets-management/console-plugin-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ansible Automation Platform 2.1 ansible-automation-platform/automation-portal 1787047114
    fixed: vendor fix RHSA-2026:56338
  • Red Hat Ansible Automation Platform 2.2 ansible-automation-platform/automation-portal 1787047188
    fixed: vendor fix RHSA-2026:56357
show 23 more
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 1786634825
    fixed: vendor fix RHSA-2026:54760
  • Red Hat Edge Manager 1.1 rhem/flightctl-ui-rhel10 1789486181, rhem/flightctl-ui-ocp-rhel9 1789486446, rhem/flightctl-ui-ocp-rhel10 1789486226
    fixed: vendor fix RHSA-2026:68044
  • Red Hat Edge Manager 1.2 rhem/flightctl-ui-rhel9 1789486750, rhem/flightctl-ui-rhel10 1789488111, rhem/flightctl-ui-ocp-rhel9 1789486476, rhem/flightctl-ui-ocp-rhel10 1789485920
    fixed: vendor fix RHSA-2026:68006
  • Red Hat Hardened Images grafana12.4 12.4.8-0.1.1.hum1, grafana13.1 13.1.3-0.1.1.hum1
    fixed: vendor fix RHSA-2026:54518
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-ui-rhel8 1789546373
    fixed: vendor fix RHSA-2026:68681
  • Red Hat OpenShift AI 2.25 rhoai/odh-dashboard-rhel9 1788312226, rhoai/odh-feature-server-rhel9 1787315684, rhoai/odh-feature-server-rhel9 1792148523, rhoai/odh-mod-arch-model-registry-rhel9 1788312157
    fixed: vendor fix RHSA-2026:65126
  • Red Hat OpenShift AI 3.3 rhoai/odh-feature-server-rhel9 1789745631
    fixed: vendor fix RHSA-2026:73987
  • Red Hat OpenShift AI 3.4 rhoai/odh-dashboard-rhel9 1791861020, rhoai/odh-dashboard-rhel9 1793001801, rhoai/odh-mod-arch-maas-rhel9 1791860708, rhoai/odh-feature-server-rhel9 1791863220, rhoai/odh-mod-arch-automl-rhel9 1791861032, rhoai/odh-mod-arch-gen-ai-rhel9 1791861479, +5 more
    fixed: vendor fix RHSA-2026:92510
  • Red Hat OpenShift Container Platform 4.21 openshift4/nmstate-console-plugin-rhel9 1787590372
    fixed: vendor fix RHSA-2026:60478
  • Red Hat OpenShift Container Platform 4.22 openshift4/nmstate-console-plugin-rhel9 1787744843
    fixed: vendor fix RHSA-2026:60442
  • Red Hat OpenShift Dev Spaces 3.30 devspaces/openvsx-rhel9 1789144269, devspaces/dashboard-rhel9 1789162884
    fixed: vendor fix RHSA-2026:68754
  • Red Hat OpenShift Service Mesh 3.0 openshift-service-mesh/kiali-rhel9 1787076495, openshift-service-mesh/kiali-ossmc-rhel9 1787077028
    fixed: vendor fix RHSA-2026:59548
  • Red Hat OpenShift Service Mesh 3.1 openshift-service-mesh/kiali-rhel9 1787092198, openshift-service-mesh/kiali-ossmc-rhel9 1787075730
    fixed: vendor fix RHSA-2026:59561
  • Red Hat OpenShift Service Mesh 3.2 openshift-service-mesh/kiali-rhel9 1787092255, openshift-service-mesh/kiali-ossmc-rhel9 1787077188
    fixed: vendor fix RHSA-2026:59554
  • Red Hat OpenShift Service Mesh 3.3 openshift-service-mesh/kiali-rhel9 1787077108, openshift-service-mesh/kiali-ossmc-rhel9 1787076322
    fixed: vendor fix RHSA-2026:59566
  • Red Hat OpenShift Service Mesh 3.4 openshift-service-mesh/kiali-rhel9 1787165683, openshift-service-mesh/kiali-ossmc-rhel9 1787166293
    fixed: vendor fix RHSA-2026:59583
  • Red Hat Quay 3.9 quay/quay-rhel8 1788595574
    fixed: vendor fix RHSA-2026:65514
  • Red Hat Quay 3.10 quay/quay-rhel8 1788561841
    fixed: vendor fix RHSA-2026:66084
  • Red Hat Quay 3.12 quay/quay-rhel8 1788594376
    fixed: vendor fix RHSA-2026:66523
  • Red Hat Quay 3.14 quay/quay-rhel8 1788593843
    fixed: vendor fix RHSA-2026:70267
  • Red Hat Quay 3.15 quay/quay-rhel8 1788191755
    fixed: vendor fix RHSA-2026:63307
  • Red Hat Satellite 6.18 satellite/iop-vulnerability-frontend-rhel9 1789660969, satellite/iop-host-inventory-frontend-rhel9 1788322243
    fixed: vendor fix RHSA-2026:63373
  • Red Hat Satellite 6.19 satellite/iop-advisor-frontend-rhel9 1789659565, satellite/iop-vulnerability-frontend-rhel9 1789660983, satellite/iop-host-inventory-frontend-rhel9 1788260941
    fixed: vendor fix RHSA-2026:68748

2 more fixed, 40 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
2mo ago

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-11).

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 browserslist
<4.28.7
4.28.7

Affected products

  • browserslist browserslist

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel 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.

The maintainers of browserslist/browserslist published their own advisory on GitHub. Reviewed sources take precedence over it.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.