{
  "threat_severity" : "Low",
  "public_date" : "2026-07-04T23:00:10Z",
  "bugzilla" : {
    "description" : "HdrHistogram: HdrHistogram: Denial of Service via uncontrolled memory allocation",
    "id" : "2497102",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2497102"
  },
  "cvss3" : {
    "cvss3_base_score" : "3.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-770",
  "details" : [ "A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.", "A flaw was found in HdrHistogram. A local attacker can exploit a vulnerability in the `decodeFromCompressedByteBuffer` function by manipulating the `lengthOfCompressedContents` argument. This manipulation leads to uncontrolled memory allocation, which can result in a Denial of Service (DoS) condition, making the affected system unavailable." ],
  "statement" : "Low impact. A local attacker can exploit a flaw in HdrHistogram's `decodeFromCompressedByteBuffer` function by manipulating input, leading to uncontrolled memory allocation and a denial of service. This issue requires local access and results in resource exhaustion, not arbitrary code execution or data compromise.",
  "affected_release" : [ {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-06-18T00:00:00Z",
    "advisory" : "RHSA-2026:26989",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "netavark-main-2.0.0-1.hum1",
    "impact" : "low"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-07-02T00:00:00Z",
    "advisory" : "RHSA-2026:34975",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "rust-main-1.96.1-1.hum1",
    "impact" : "low"
  } ],
  "package_state" : [ {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Not affected",
    "package_name" : "openshift-logging/vector-rhel9",
    "cpe" : "cpe:/a:redhat:logging:6"
  }, {
    "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" : "Not affected",
    "package_name" : "openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_lightspeed"
  }, {
    "product_name" : "OpenShift Service Mesh 3",
    "fix_state" : "Not affected",
    "package_name" : "openshift-service-mesh/istio-ztunnel-rhel9",
    "cpe" : "cpe:/a:redhat:service_mesh:3"
  }, {
    "product_name" : "Red Hat Ansible Automation Platform 2",
    "fix_state" : "Fix deferred",
    "package_name" : "ansible-automation-platform-25/lightspeed-chatbot-rhel8",
    "cpe" : "cpe:/a:redhat:ansible_automation_platform:2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "HdrHistogram",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-llm-d-inference-scheduler-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Not affected",
    "package_name" : "rhoai/odh-model-registry-job-async-upload-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-trustyai-service-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "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" : "Not affected",
    "package_name" : "conmon-rs",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Update Service",
    "fix_state" : "Not affected",
    "package_name" : "openshift-update-service/openshift-update-service-rhel8",
    "cpe" : "cpe:/a:redhat:openshift_update_service:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-14683\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-14683\nhttps://github.com/HdrHistogram/HdrHistogram/\nhttps://github.com/HdrHistogram/HdrHistogram/issues/219\nhttps://vuldb.com/cve/CVE-2026-14683\nhttps://vuldb.com/submit/846750\nhttps://vuldb.com/submit/846752\nhttps://vuldb.com/vuln/376279\nhttps://vuldb.com/vuln/376279/cti" ],
  "name" : "CVE-2026-14683",
  "csaw" : false
}