{
  "threat_severity" : "Moderate",
  "public_date" : "2026-03-11T19:27:23Z",
  "bugzilla" : {
    "description" : "tornado-python: Tornado: Denial of Service via large multipart bodies",
    "id" : "2446765",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2446765"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-770",
  "details" : [ "Tornado is a Python web framework and asynchronous networking library. In versions of Tornado prior to 6.5.5, the only limit on the number of parts in multipart/form-data is the max_body_size setting (default 100MB). Since parsing occurs synchronously on the main thread, this creates the possibility of denial-of-service due to the cost of parsing very large multipart bodies with many parts. This vulnerability is fixed in 6.5.5.", "A flaw was found in tornado-python. A remote attacker can exploit this vulnerability by sending a specially crafted, very large multipart body with numerous parts. Because the parsing of these large bodies occurs synchronously on the main thread, it can consume excessive resources, leading to a denial of service (DoS) for the application." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-05T00:00:00Z",
    "advisory" : "RHSA-2026:13641",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.1",
    "package" : "python-tornado-0:6.5.5-1.el10_1.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:19034",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "python-tornado-0:6.5.5-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "release_date" : "2026-05-26T00:00:00Z",
    "advisory" : "RHSA-2026:20577",
    "cpe" : "cpe:/o:redhat:enterprise_linux_eus:10.0",
    "package" : "python-tornado-0:6.4.2-1.el10_0.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-04-14T00:00:00Z",
    "advisory" : "RHSA-2026:8093",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::highavailability",
    "package" : "pcs-0:0.10.18-2.el8_10.9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11493",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4::highavailability",
    "package" : "pcs-0:0.10.8-1.el8_4.11"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11493",
    "cpe" : "cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability",
    "package" : "pcs-0:0.10.8-1.el8_4.11"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11494",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.6::highavailability",
    "package" : "pcs-0:0.10.12-6.el8_6.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11494",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.6::highavailability",
    "package" : "pcs-0:0.10.12-6.el8_6.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11495",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.8::highavailability",
    "package" : "pcs-0:0.10.15-4.el8_8.11"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11495",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.8::highavailability",
    "package" : "pcs-0:0.10.15-4.el8_8.11"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-05T00:00:00Z",
    "advisory" : "RHSA-2026:13670",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "python-tornado-0:6.5.5-1.el9_7.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:19189",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "python-tornado-0:6.5.5-1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2026-04-29T00:00:00Z",
    "advisory" : "RHSA-2026:11454",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0::highavailability",
    "package" : "pcs-0:0.11.1-10.el9_0.11"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-05-26T00:00:00Z",
    "advisory" : "RHSA-2026:20573",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "python-tornado-0:6.4.2-1.el9_2.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2026-05-26T00:00:00Z",
    "advisory" : "RHSA-2026:20810",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "python-tornado-0:6.4.2-1.el9_4.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "release_date" : "2026-05-26T00:00:00Z",
    "advisory" : "RHSA-2026:20572",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.6",
    "package" : "python-tornado-0:6.4.2-2.el9_6.3"
  }, {
    "product_name" : "Red Hat OpenShift AI 2.25",
    "release_date" : "2026-04-23T00:00:00Z",
    "advisory" : "RHSA-2026:10184",
    "cpe" : "cpe:/a:redhat:openshift_ai:2.25::el9",
    "package" : "rhoai/odh-llama-stack-core-rhel9:1775144403"
  } ],
  "package_state" : [ {
    "product_name" : "External Secrets Operator for Red Hat OpenShift",
    "fix_state" : "Affected",
    "package_name" : "external-secrets-operator/bitwarden-sdk-server-rhel9",
    "cpe" : "cpe:/a:redhat:external_secrets_operator:1"
  }, {
    "product_name" : "External Secrets Operator for Red Hat OpenShift",
    "fix_state" : "Affected",
    "package_name" : "external-secrets-operator/external-secrets-operator-bundle",
    "cpe" : "cpe:/a:redhat:external_secrets_operator:1"
  }, {
    "product_name" : "External Secrets Operator for Red Hat OpenShift",
    "fix_state" : "Affected",
    "package_name" : "external-secrets-operator/external-secrets-operator-rhel9",
    "cpe" : "cpe:/a:redhat:external_secrets_operator:1"
  }, {
    "product_name" : "External Secrets Operator for Red Hat OpenShift",
    "fix_state" : "Affected",
    "package_name" : "external-secrets-operator/external-secrets-rhel9",
    "cpe" : "cpe:/a:redhat:external_secrets_operator:1"
  }, {
    "product_name" : "Lightspeed Core",
    "fix_state" : "Affected",
    "package_name" : "lightspeed-core/lightspeed-stack-rhel9",
    "cpe" : "cpe:/a:redhat:lightspeed_core"
  }, {
    "product_name" : "Lightspeed Core",
    "fix_state" : "Affected",
    "package_name" : "lightspeed-core/rag-tool-rhel9",
    "cpe" : "cpe:/a:redhat:lightspeed_core"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Not affected",
    "package_name" : "openshift-lightspeed/lightspeed-ocp-rag-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "python-tornado",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "pcs",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "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" : "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" : "Affected",
    "package_name" : "rhelai3/disk-image-cuda-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-mlflow-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-tensorflow-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-trustyai-nemo-guardrails-server-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-trustyai-ragas-lls-provider-dsp-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-minimal-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-minimal-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-pytorch-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-tensorflow-cuda-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-tensorflow-rocm-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Affected",
    "package_name" : "python-pep517",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Affected",
    "package_name" : "python-tornado",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Affected",
    "package_name" : "rhcos",
    "cpe" : "cpe:/a:redhat:openshift:4"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-31958\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31958\nhttps://github.com/tornadoweb/tornado/security/advisories/GHSA-qjxf-f2mg-c6mc" ],
  "name" : "CVE-2026-31958",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}