{
  "threat_severity" : "Moderate",
  "public_date" : "2026-05-27T20:42:59Z",
  "bugzilla" : {
    "description" : "python-ujson: UltraJSON: Memory leak leading to Denial of Service",
    "id" : "2482406",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482406"
  },
  "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-772",
  "details" : [ "UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.12.1, when ujson.dump() writes to a file-like object and the write operation raises an exception, the serialized JSON string object is not decremented, leaking memory. Each failed write operation leaks the full size of the serialized payload. This vulnerability is fixed in 5.12.1.", "A flaw was found in UltraJSON, a fast JSON encoder and decoder. When the `ujson.dump()` function attempts to write data to a file-like object and an error occurs during this operation, the memory allocated for the serialized JSON string is not properly released. This continuous failure to deallocate memory can lead to a memory leak, potentially causing resource exhaustion and a Denial of Service (DoS) for the affected system." ],
  "statement" : "This Moderate flaw in UltraJSON can lead to a denial of service due to a memory leak when `ujson.dump()` attempts to write to a file-like object and encounters an exception. Applications utilizing `ujson.dump()` with attacker-controlled input or file-like objects are susceptible to resource exhaustion. Deployments that only use `ujson.dumps()` or JSON decoding functions are not affected.",
  "affected_release" : [ {
    "product_name" : "Red Hat OpenShift AI 2.25",
    "release_date" : "2026-07-21T00:00:00Z",
    "advisory" : "RHSA-2026:42644",
    "cpe" : "cpe:/a:redhat:openshift_ai:2.25::el9",
    "package" : "rhoai/odh-caikit-tgis-serving-rhel9:1783082430"
  }, {
    "product_name" : "Red Hat OpenShift AI 2.25",
    "release_date" : "2026-07-21T00:00:00Z",
    "advisory" : "RHSA-2026:42644",
    "cpe" : "cpe:/a:redhat:openshift_ai:2.25::el9",
    "package" : "rhoai/odh-llama-stack-core-rhel9:1783701598"
  } ],
  "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" : "Migration Toolkit for Applications 8",
    "fix_state" : "Affected",
    "package_name" : "mta/mta-generic-external-provider-rhel9",
    "cpe" : "cpe:/a:redhat:migration_toolkit_applications:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Will not fix",
    "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" : "Will not fix",
    "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" : "Will not fix",
    "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" : "Will not fix",
    "package_name" : "rhelai3/disk-image-cuda-rhel9",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-caikit-nlp-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-feature-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-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 OpenStack Platform 16.2",
    "fix_state" : "Not affected",
    "package_name" : "python-ujson",
    "cpe" : "cpe:/a:redhat:openstack:16.2"
  }, {
    "product_name" : "Red Hat OpenStack Platform 17.1",
    "fix_state" : "Not affected",
    "package_name" : "python-ujson",
    "cpe" : "cpe:/a:redhat:openstack:17.1"
  }, {
    "product_name" : "Red Hat OpenStack Platform 18.0",
    "fix_state" : "Not affected",
    "package_name" : "python-ujson",
    "cpe" : "cpe:/a:redhat:openstack:18.0"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Affected",
    "package_name" : "satellite/iop-host-inventory-rhel9",
    "cpe" : "cpe:/a:redhat:satellite:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-44660\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-44660\nhttps://github.com/ultrajson/ultrajson/commit/82af1d0ac01d09aa40c887b460d44b9d9f4bccd9\nhttps://github.com/ultrajson/ultrajson/releases/tag/5.12.1\nhttps://github.com/ultrajson/ultrajson/security/advisories/GHSA-c38f-wx89-p2xg" ],
  "name" : "CVE-2026-44660",
  "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
}