{
  "threat_severity" : "Important",
  "public_date" : "2026-05-12T16:59:06Z",
  "bugzilla" : {
    "description" : "dotnet: .NET: infinite loop allows an attacker to cause a denial of service",
    "id" : "2476605",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2476605"
  },
  "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-835",
  "details" : [ "Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.", "A flaw was found in dotnet. An infinite loop in ASP.NET Core allows an unauthenticated remote attacker to cause a denial of service over a network. This issue can lead to an application crash and a high consumption of system resources." ],
  "statement" : "As this flaw allows an unauthenticated remote attacker to cause a denial of service, it has been rated with an important severity.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21286",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "dotnet8.0-0:8.0.127-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-28T00:00:00Z",
    "advisory" : "RHSA-2026:21754",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "dotnet9.0-0:9.0.117-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21291",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet8.0-0:8.0.127-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21294",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet9.0-0:9.0.117-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21295",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dotnet10.0-0:10.0.108-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21293",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet8.0-0:8.0.127-1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21296",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet9.0-0:9.0.117-1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-27T00:00:00Z",
    "advisory" : "RHSA-2026:21297",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "dotnet10.0-0:10.0.108-1.el9_8"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-05-14T00:00:00Z",
    "advisory" : "RHSA-2026:17464",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet10-0-main-10.0.108-1.hum1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-05-14T00:00:00Z",
    "advisory" : "RHSA-2026:17527",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet9-0-main-9.0.117-1.hum1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-05-14T00:00:00Z",
    "advisory" : "RHSA-2026:17682",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "dotnet8-0-main-8.0.127-1.hum1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "dotnet10.0",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-42899\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-42899\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42899" ],
  "name" : "CVE-2026-42899",
  "mitigation" : {
    "value" : "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
    "lang" : "en:us"
  },
  "csaw" : false
}