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Fencer Intel
medium 6.6

CVE-2026-45819 json

baseline-browser-mapping process termination on invalid input causes denial of service

published 2mo ago modified 17d ago also GHSA-w5vr-8v7q-w6rv , EUVD-2026-57788

cvss
6.6
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Patch / fix

  • npm baseline-browser-mapping 2.11.0
  • web-platform-dx baseline-browser-mapping 2.11.0
  • 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

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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-2026-45819 updated cvss 7.5

baseline-browser-mapping: baseline-browser-mapping: Denial of Service via improper input handling

  • 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
    affected: workaround, no fix available
  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel9, openshift-pipelines/pipelines-console-plugin-rhel9, openshift-pipelines/pipelines-console-plugin-pf5-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-25/lightspeed-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Build of Podman Desktop rh-podman-desktop.git 1.1.0
    affected: workaround, no fix available
  • Red Hat Ceph Storage 9 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +17 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 Red Hat Enterprise Linux AI (RHEL AI) 3 rust 1.97.1-1.el10 Red Hat OpenShift Container Platform 5 openshift5/nmstate-console-plugin-rhel9 Red Hat Openshift Data Foundation 4 odf4/ocs-client-console-rhel9, odf4/odf-multicluster-console-rhel9 Red Hat Satellite 6 satellite/iop-advisor-frontend-rhel9
    affected: workaround, no fix available
  • 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 Self-service automation portal 2 ansible-automation-platform/automation-portal
    affected: workaround, no fix available
show 20 more
  • 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 OpenShift AI 2.25 rhoai/odh-dashboard-rhel9 1788312226, rhoai/odh-mod-arch-model-registry-rhel9 1788312157
    fixed: vendor fix RHSA-2026:65126
  • Red Hat OpenShift AI 3.4 rhoai/odh-mlflow-rhel9 1791865967, rhoai/odh-dashboard-rhel9 1791861020, rhoai/odh-mod-arch-maas-rhel9 1793001859, rhoai/odh-feature-server-rhel9 1791863220, rhoai/odh-mod-arch-automl-rhel9 1791861032, rhoai/odh-mod-arch-gen-ai-rhel9 1793001896, +4 more
    fixed: vendor fix RHSA-2026:84734
  • Red Hat OpenShift Container Platform 4.21 openshift4/nmstate-console-plugin-rhel9 1789592806
    fixed: vendor fix RHSA-2026:68547
  • Red Hat OpenShift Container Platform 4.22 openshift4/nmstate-console-plugin-rhel9 1789567849, openshift4/ose-agent-installer-ui-rhel9 1790130874
    fixed: vendor fix RHSA-2026:68553
  • Red Hat Openshift Data Foundation 4.19 odf4/odf-console-rhel9 1793126829
    fixed: vendor fix RHSA-2026:92650
  • Red Hat OpenShift Dev Spaces 3.30 devspaces/dashboard-rhel9 1789162884
    fixed: vendor fix RHSA-2026:68754
  • Red Hat Satellite 6.18 satellite/iop-vulnerability-frontend-rhel9 1789660969
    fixed: vendor fix RHSA-2026:68765
  • Red Hat Satellite 6.19 satellite/iop-vulnerability-frontend-rhel9 1789660983
    fixed: vendor fix RHSA-2026:68755
  • Red Hat Cryostat 4 cryostat/cryostat-openshift-console-plugin-rhel9
    not affected: component not present
  • Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9, openshift-service-mesh/kiali-ossmc-rhel9 Red Hat AMQ Broker 7 amq-broker-bin.zip 7.13.6.CR1, amq-broker-maven-repository.zip 7.13.6.CR1 Red Hat Ansible Automation Platform 2 automation-platform-ui 2.6.12-1.el9ap, ansible-automation-platform-26/gateway-rhel9, ansible-automation-platform-27/gateway-rhel9, ansible-automation-platform-26/lightspeed-rhel9 Red Hat build of Apache Camel - HawtIO 4 rhaf-hawtio-maven-repository.zip 4.4.0.GA
    not affected: vulnerable code not present
  • Red Hat Build of Keycloak rhbk-quarkus-dist.zip 26.6.5.CR1
    not affected: component not present
  • Red Hat Data Grid 8 redhat-datagrid-maven-repository.zip 8.6.1.CR1
    not affected: vulnerable code cannot be controlled by adversary
  • Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9, rhdh/red-hat-developer-hub-backstage-plugin-lightspeed, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator, rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-form-widgets, +2 more
    not affected: vulnerable code not in execute path
  • Red Hat Edge Manager 1.1 rhem/flightctl-api-rhel9 1789487080, rhem/flightctl-api-rhel10 1789485939, rhem/flightctl-worker-rhel9 1789486829, rhem/flightctl-worker-rhel10 1789486071, rhem/flightctl-db-setup-rhel9 1789487116, rhem/flightctl-periodic-rhel9 1789486513, +18 more Red Hat Edge Manager 1.2 rhem/flightctl-api-rhel9 1789485317, rhem/flightctl-api-rhel10 1789485653, rhem/flightctl-worker-rhel9 1789488061, rhem/flightctl-worker-rhel10 1789486740, rhem/flightctl-db-setup-rhel9 1789485698, rhem/flightctl-periodic-rhel9 1789485282, +18 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 dotnet, dotnet8.0, dotnet-host, dotnet-sdk-8.0, dotnet-hostfxr-8.0, dotnet-runtime-8.0, +10 more Red Hat Enterprise Linux 9 rust, cargo, clippy, rustfmt, rust-gdb, rust-src, +9 more Red Hat Enterprise Linux 10 rust 1.97.1-1.el10
    not affected: component not present
  • Red Hat Hardened Images dotnet8.0, rust 1.97.1-1.el10, jaeger 2.20.0-0.8.hum1, nodejs26 26.7.0-1.5.2.hum1, prometheus3.13 3.13.2-0.2.hum1, opentelemetry-collector 0.158.0-0.1.hum1, +2 more Red Hat OpenShift AI 2.25 rhoai/odh-rhel9-operator 1788331391, rhoai/odh-vllm-cpu-rhel9 1786712073, rhoai/odh-modelmesh-rhel9 1788319539, rhoai/odh-operator-bundle 1788332816, rhoai/odh-vllm-cuda-rhel9 1786710989, rhoai/odh-vllm-rocm-rhel9 1786711151, +69 more Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1791509689, rhoai/odh-cli-rhel9 1792722177, rhoai/rhai-cli-rhel9 1791509689, rhoai/rhai-cli-rhel9 1792722177, rhoai/odh-automl-rhel9 1791535789, rhoai/odh-automl-rhel9 1792697253, +196 more
    not affected: vulnerable code not present
  • Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-console-rhel9, openshift4/ose-monitoring-plugin-rhel9
    not affected: vulnerable code not in execute path

8 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

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 6.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
CNA 4.0 6.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:N/AU:Y/R:U/V:D/RE:M/U:Amber

Affected packages

ecosystem package affected fixed in
npm baseline-browser-mapping
>=2.0.0, <2.11.0
2.11.0

Affected products

  • web-platform-dx baseline-browser-mapping

Classification

Weakness
  • CWE-705 Incorrect Control Flow Scoping
  • CWE-755 Improper Handling of Exceptional Conditions

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.