{
  "threat_severity" : "Moderate",
  "public_date" : "2026-07-14T19:40:15Z",
  "bugzilla" : {
    "description" : ".NET: .NET: Network Spoofing Vulnerability",
    "id" : "2500589",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2500589"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-838",
  "details" : [ "Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.", "A flaw was found in .NET. An authorized attacker can exploit this vulnerability by leveraging improper encoding or escaping of output. This allows the attacker to perform spoofing over a network, potentially deceiving users or systems into believing they are interacting with a trusted entity." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41893",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "dotnet8.0-0:8.0.129-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41895",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "dotnet9.0-0:9.0.119-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41897",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "dotnet10.0-0:10.0.110-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41899",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet9.0-0:9.0.119-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41900",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet10.0-0:10.0.110-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41901",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet8.0-0:8.0.129-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41894",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet8.0-0:8.0.129-1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41896",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet9.0-0:9.0.119-1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:41898",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet10.0-0:10.0.110-1.el9_8"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26638",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet10-0-main-10.0.109-1.hum1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-07-15T00:00:00Z",
    "advisory" : "RHSA-2026:39952",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet9-0-main-9.0.119-1.hum1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-07-20T00:00:00Z",
    "advisory" : "RHSA-2026:42145",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet8-0-main-8.0.129-2.1.hum1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Affected",
    "package_name" : "devspaces/udi-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-50659\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-50659\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50659" ],
  "name" : "CVE-2026-50659",
  "csaw" : false
}