{
  "threat_severity" : "Important",
  "public_date" : "2026-07-14T20:51:29Z",
  "bugzilla" : {
    "description" : "soupsieve: Soupsieve: Denial of Service via crafted CSS selector strings",
    "id" : "2500752",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2500752"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-1333",
  "details" : [ "Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve contains a regular expression vulnerable to catastrophic backtracking when processing an attribute selector with an unterminated quoted value in soupsieve/css_parser.py, allowing an attacker who can supply untrusted CSS selector strings to soupsieve.compile() or Beautiful Soup .select() / .select_one() to cause CPU exhaustion and denial of service. This issue is fixed in version 2.8.4.", "A flaw was found in soupsieve, a CSS selector library. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by supplying specially crafted, untrusted CSS selector strings. The flaw occurs due to a regular expression vulnerable to catastrophic backtracking when processing an attribute selector with an unterminated quoted value, leading to CPU exhaustion." ],
  "statement" : "Important: A regular expression denial of service (ReDoS) flaw in the soupsieve library can lead to CPU exhaustion. A remote attacker can exploit this by supplying a small, specially crafted CSS selector string to applications that process untrusted CSS, potentially blocking worker threads and causing a complete service denial in affected Red Hat products.",
  "affected_release" : [ {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-06-07T00:00:00Z",
    "advisory" : "RHSA-2026:23992",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "python-attrs-main-26.1.0-3.hum1",
    "impact" : "important"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-07-01T00:00:00Z",
    "advisory" : "RHSA-2026:34119",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "python-rpds-py-main-2026.6.3-1.hum1",
    "impact" : "important"
  } ],
  "package_state" : [ {
    "product_name" : "Exploit Intelligence",
    "fix_state" : "Affected",
    "package_name" : "exploit-intelligence-tech-preview/vulnerability-analysis-rhel9",
    "cpe" : "cpe:/a:redhat:exploit_intelligence:0"
  }, {
    "product_name" : "Lightspeed Core",
    "fix_state" : "Not affected",
    "package_name" : "lightspeed-core/rag-tool-cpu-rhel9",
    "cpe" : "cpe:/a:redhat:lightspeed_core"
  }, {
    "product_name" : "Lightspeed Core",
    "fix_state" : "Affected",
    "package_name" : "lightspeed-core/rag-tool-cuda-12.9-rhel9",
    "cpe" : "cpe:/a:redhat:lightspeed_core"
  }, {
    "product_name" : "Migration Toolkit for Applications 8",
    "fix_state" : "Affected",
    "package_name" : "mta/mta-solution-server-rhel9",
    "cpe" : "cpe:/a:redhat:migration_toolkit_applications:8"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Not affected",
    "package_name" : "openshift-lightspeed/lightspeed-ocp-rag-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "OpenShift Lightspeed",
    "fix_state" : "Affected",
    "package_name" : "openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Will not fix",
    "package_name" : "ansible-automation-platform-25/lightspeed-chatbot-rhel8",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "fix_state" : "Not affected",
    "package_name" : "python-urllib3",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "impact" : "important"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-automl-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-autorag-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-th06-cpu-torch210-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-th06-cpu-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-th06-cuda130-torch210-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-th06-cuda130-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-th06-rocm64-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not 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-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" : "openshift4/ose-olm-catalogd-rhel9",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Virtualization 4",
    "fix_state" : "Affected",
    "package_name" : "container-native-virtualization/ocp-virt-validation-checkup-rhel9",
    "cpe" : "cpe:/a:redhat:container_native_virtualization:4"
  }, {
    "product_name" : "Red Hat Quay 3",
    "fix_state" : "Affected",
    "package_name" : "quay/quay-rhel8",
    "cpe" : "cpe:/a:redhat:quay:3"
  }, {
    "product_name" : "Red Hat Quay 3",
    "fix_state" : "Affected",
    "package_name" : "quay/quay-rhel9",
    "cpe" : "cpe:/a:redhat:quay:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-49477\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-49477\nhttps://github.com/facelessuser/soupsieve/commit/eb4397618709186c109400448c6043b728217dc3\nhttps://github.com/facelessuser/soupsieve/releases/tag/2.8.4\nhttps://github.com/facelessuser/soupsieve/security/advisories/GHSA-836r-79rf-4m37" ],
  "name" : "CVE-2026-49477",
  "csaw" : false
}