{
  "threat_severity" : "Moderate",
  "public_date" : "2026-03-11T10:09:21Z",
  "bugzilla" : {
    "description" : "curl: curl: Unauthorized access due to improper HTTP proxy connection reuse",
    "id" : "2446449",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2446449"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-305",
  "details" : [ "curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a\nserver, even if the new request uses different credentials for the HTTP proxy.\nThe proper behavior is to create or use a separate connection.", "A flaw was found in curl. This vulnerability allows curl to wrongly reuse an existing HTTP proxy connection when performing a CONNECT request to a server, even if the new request uses different authentication credentials for the HTTP proxy. This improper connection reuse could lead to an attacker gaining unauthorized access to resources or information intended for a different user." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-08-17T00:00:00Z",
    "advisory" : "RHSA-2026:55450",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "curl-0:8.12.1-4.el10_2.3"
  }, {
    "product_name" : "Red Hat JBoss Core Services 2.4.62.SP5",
    "release_date" : "2026-08-19T00:00:00Z",
    "advisory" : "RHSA-2026:56869",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-04-07T00:00:00Z",
    "advisory" : "RHSA-2026:6893",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "curl-main-8.19.0-3.hum1"
  } ],
  "package_state" : [ {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "build-of-trustee/trustee-rhel9",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "confidential-compute-attestation-tech-preview/trustee-rhel9",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-sandboxed-containers/osc-operator-bundle",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-sandboxed-containers/osc-podvm-builder-rhel9",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-sandboxed-containers/osc-podvm-payload-rhel9",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Confidential Compute Attestation",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-sandboxed-containers/osc-rhel9-operator",
    "cpe" : "cpe:/a:redhat:confidential_compute_attestation:1"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/cluster-logging-operator-bundle",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/cluster-logging-rhel9-operator",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/eventrouter-rhel9",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/fluentd-rhel9",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/log-file-metric-exporter-rhel9",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/logging-view-plugin-rhel9",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Logging Subsystem for Red Hat OpenShift",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-logging/vector-rhel9",
    "cpe" : "cpe:/a:redhat:logging:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "rust",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "s390utils",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "snphost",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "trustee",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "trustee-guest-components",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Fix deferred",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "rust",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "snphost",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "trustee-guest-components",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Fix deferred",
    "package_name" : "rust",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Fix deferred",
    "package_name" : "curl",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift4/recert-rhel9",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift/ose-rhel-coreos-8",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift/ose-rhel-coreos-9",
    "cpe" : "cpe:/a:redhat:openshift:4"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Fix deferred",
    "package_name" : "devspaces/code-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat Trusted Profile Analyzer",
    "fix_state" : "Fix deferred",
    "package_name" : "rhtpa/rhtpa-trustification-service-rhel9",
    "cpe" : "cpe:/a:redhat:trusted_profile_analyzer:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-3784\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3784\nhttp://www.openwall.com/lists/oss-security/2026/03/11/3\nhttps://curl.se/docs/CVE-2026-3784.html\nhttps://curl.se/docs/CVE-2026-3784.json\nhttps://hackerone.com/reports/3584903" ],
  "name" : "CVE-2026-3784",
  "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
}