{
  "threat_severity" : "Moderate",
  "public_date" : "2026-06-22T20:07:05Z",
  "bugzilla" : {
    "description" : "http-proxy-middleware: http-proxy-middleware: Data integrity compromise via CR/LF injection",
    "id" : "2491525",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2491525"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-93",
  "details" : [ "http-proxy-middleware is node.js http-proxy middleware. From 3.0.4 until 3.0.7 and 4.1.1, fixRequestBody() is the library's documented helper for re-emitting a request body that was already consumed by a body parser. When the outgoing Content-Type is multipart/form-data, it rebuilds the body with handlerFormDataBodyData(), which interpolates each req.body key and value directly into the multipart wire format without neutralizing CR/LF. A \\r\\n inside a value (or key) lets an attacker close the current part and inject an entirely new form part. Because the proxy's own body parser saw a single opaque value, any gateway-side policy or validation performed on req.body is evaluated against a different set of fields than the upstream backend ultimately parses a request/parameter desynchronization across the trust boundary. This vulnerability is fixed in 3.0.7 and 4.1.1.", "A flaw was found in http-proxy-middleware. A remote attacker could exploit a vulnerability in the fixRequestBody() function, which is used to re-emit a request body. By injecting carriage return and line feed characters (\\r\\n) into a request body key or value, an attacker can bypass security policies and validation performed by the proxy. This desynchronization between the proxy and the backend server can lead to a compromise of data integrity." ],
  "statement" : "Red Hat rates this issue as having Moderate impact for Red Hat OpenShift AI MLflow images that bundle http-proxy-middleware. Other Red Hat AI products are not affected or do not expose the vulnerable code path in normal operation.",
  "affected_release" : [ {
    "product_name" : "Red Hat Trusted Artifact Signer 1.3",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:42085",
    "cpe" : "cpe:/a:redhat:trusted_artifact_signer:1.3::el9",
    "package" : "rhtas/rhtas-console-ui-rhel9:1784105894"
  } ],
  "package_state" : [ {
    "product_name" : "Cryostat 4",
    "fix_state" : "Not affected",
    "package_name" : "cryostat-openshift-console-plugin-npm",
    "cpe" : "cpe:/a:redhat:cryostat:4"
  }, {
    "product_name" : "Cryostat 4",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:cryostat:4"
  }, {
    "product_name" : "Gatekeeper 3",
    "fix_state" : "Not affected",
    "package_name" : "gatekeeper/gatekeeper-rhel9",
    "cpe" : "cpe:/a:redhat:gatekeeper:3"
  }, {
    "product_name" : "Migration Toolkit for Applications 8",
    "fix_state" : "Not affected",
    "package_name" : "mta/mta-ui-rhel8",
    "cpe" : "cpe:/a:redhat:migration_toolkit_applications:8"
  }, {
    "product_name" : "Migration Toolkit for Applications 8",
    "fix_state" : "Affected",
    "package_name" : "mta/mta-ui-rhel9",
    "cpe" : "cpe:/a:redhat:migration_toolkit_applications:8"
  }, {
    "product_name" : "Migration Toolkit for Containers",
    "fix_state" : "Not affected",
    "package_name" : "rhmtc/openshift-migration-ui-rhel8",
    "cpe" : "cpe:/a:redhat:rhmt:1"
  }, {
    "product_name" : "Node HealthCheck Operator",
    "fix_state" : "Not affected",
    "package_name" : "workload-availability/node-healthcheck-must-gather-rhel9",
    "cpe" : "cpe:/a:redhat:workload_availability_nhc:0"
  }, {
    "product_name" : "Node HealthCheck Operator",
    "fix_state" : "Not affected",
    "package_name" : "workload-availability/node-healthcheck-operator-bundle",
    "cpe" : "cpe:/a:redhat:workload_availability_nhc:0"
  }, {
    "product_name" : "Node HealthCheck Operator",
    "fix_state" : "Not affected",
    "package_name" : "workload-availability/node-healthcheck-rhel9-operator",
    "cpe" : "cpe:/a:redhat:workload_availability_nhc:0"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Not affected",
    "package_name" : "openshift-lightspeed/lightspeed-console-plugin-419-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Not affected",
    "package_name" : "openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Not affected",
    "package_name" : "openshift-lightspeed/lightspeed-console-plugin-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "OpenShift Pipelines",
    "fix_state" : "Not affected",
    "package_name" : "openshift-pipelines/pipelines-console-plugin-pf5-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_pipelines:1"
  }, {
    "product_name" : "OpenShift Pipelines",
    "fix_state" : "Not affected",
    "package_name" : "openshift-pipelines/pipelines-console-plugin-rhel8",
    "cpe" : "cpe:/a:redhat:openshift_pipelines:1"
  }, {
    "product_name" : "OpenShift Pipelines",
    "fix_state" : "Not affected",
    "package_name" : "openshift-pipelines/pipelines-console-plugin-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_pipelines:1"
  }, {
    "product_name" : "OpenShift Pipelines",
    "fix_state" : "Not affected",
    "package_name" : "openshift-pipelines/pipelines-hub-ui-rhel8",
    "cpe" : "cpe:/a:redhat:openshift_pipelines:1"
  }, {
    "product_name" : "OpenShift Pipelines",
    "fix_state" : "Not affected",
    "package_name" : "openshift-pipelines/pipelines-hub-ui-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_pipelines:1"
  }, {
    "product_name" : "OpenShift Service Mesh 2",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-ossmc-rhel8",
    "cpe" : "cpe:/a:redhat:service_mesh:2"
  }, {
    "product_name" : "OpenShift Service Mesh 2",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-rhel8",
    "cpe" : "cpe:/a:redhat:service_mesh:2"
  }, {
    "product_name" : "OpenShift Service Mesh 3",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-operator-bundle",
    "cpe" : "cpe:/a:redhat:service_mesh:3"
  }, {
    "product_name" : "OpenShift Service Mesh 3",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-ossmc-rhel9",
    "cpe" : "cpe:/a:redhat:service_mesh:3"
  }, {
    "product_name" : "OpenShift Service Mesh 3",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-rhel9",
    "cpe" : "cpe:/a:redhat:service_mesh:3"
  }, {
    "product_name" : "OpenShift Service Mesh 3",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/kiali-rhel9-operator",
    "cpe" : "cpe:/a:redhat:service_mesh:3"
  }, {
    "product_name" : "Red Hat AMQ Broker 7",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:amq_broker:7"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-24/lightspeed-rhel8",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-25/lightspeed-rhel8",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-26/gateway-rhel9",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-26/lightspeed-rhel9",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-27/gateway-rhel9",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform-27/lightspeed-rhel9",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Not affected",
    "package_name" : "automation-eda-controller",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat build of Apache Camel for Spring Boot 4",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:camel_spring_boot:4"
  }, {
    "product_name" : "Red Hat build of Apache Camel - HawtIO 4",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:apache_camel_hawtio:4"
  }, {
    "product_name" : "Red Hat Build of Podman Desktop",
    "fix_state" : "Not affected",
    "package_name" : "rh-podman-desktop.git",
    "cpe" : "cpe:/a:redhat:podman_desktop:1"
  }, {
    "product_name" : "Red Hat Connectivity Link 1",
    "fix_state" : "Not affected",
    "package_name" : "rhcl-1/rhcl-console-plugin-rhel9",
    "cpe" : "cpe:/a:redhat:connectivity_link:1"
  }, {
    "product_name" : "Red Hat Data Grid 8",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:jboss_data_grid:8"
  }, {
    "product_name" : "Red Hat Developer Hub",
    "fix_state" : "Not affected",
    "package_name" : "rhdh/rhdh-hub-rhel9",
    "cpe" : "cpe:/a:redhat:rhdh:1"
  }, {
    "product_name" : "Red Hat Discovery 2",
    "fix_state" : "Not affected",
    "package_name" : "discovery/discovery-ui-rhel9",
    "cpe" : "cpe:/a:redhat:discovery:2::el9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "grafana",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "pcs",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "pcs",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "rhelai3/bootc-cuda-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "rhelai3/bootc-gaudi-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "rhelai3/bootc-rocm-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "rhelai3/disk-image-cuda-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Not affected",
    "package_name" : "http-proxy-middleware",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-mlflow-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Not affected",
    "package_name" : "openshift4/ose-agent-installer-ui-rhel9",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Not affected",
    "package_name" : "openshift4/ose-console",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Not affected",
    "package_name" : "openshift4/ose-console-rhel9",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Virtualization 4",
    "fix_state" : "Not affected",
    "package_name" : "container-native-virtualization/kubevirt-console-plugin",
    "cpe" : "cpe:/a:redhat:container_native_virtualization:4"
  }, {
    "product_name" : "Red Hat OpenShift Virtualization 4",
    "fix_state" : "Not affected",
    "package_name" : "container-native-virtualization/kubevirt-console-plugin-rhel9",
    "cpe" : "cpe:/a:redhat:container_native_virtualization:4"
  }, {
    "product_name" : "Red Hat Quay 3",
    "fix_state" : "Not affected",
    "package_name" : "quay/quay-rhel8",
    "cpe" : "cpe:/a:redhat:quay:3"
  }, {
    "product_name" : "Red Hat Trusted Profile Analyzer",
    "fix_state" : "Affected",
    "package_name" : "rhtpa/rhtpa-trustification-service-rhel9",
    "cpe" : "cpe:/a:redhat:trusted_profile_analyzer:2"
  }, {
    "product_name" : "Self-service automation portal 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform/automation-portal",
    "cpe" : "cpe:/a:redhat:ansible_portal:2"
  }, {
    "product_name" : "Self-service automation portal 2",
    "fix_state" : "Not affected",
    "package_name" : "ansible-automation-platform/bootc-automation-portal-rhel9",
    "cpe" : "cpe:/a:redhat:ansible_portal:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-55603\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-55603\nhttps://github.com/chimurai/http-proxy-middleware/security/advisories/GHSA-gcq2-9pq2-cxqm" ],
  "name" : "CVE-2026-55603",
  "mitigation" : {
    "value" : "Restrict network access to MLflow services. Do not pass untrusted user input into proxy target or header configuration. Upgrade http-proxy-middleware when updated packages are available.",
    "lang" : "en:us"
  },
  "csaw" : false
}