{
  "fix": "RHSA-2026:21296",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-21296",
  "summary": "RHSA-2026:21296, released May 27, 2026, fixes 1 CVE across 14 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 14 packages",
  "released": "2026-05-27T17:40:12Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-42899, high severity",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0243,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:21296",
  "appliesTo": [
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      "productUrl": "https://patchblox.com/security/product/linux/aspnetcore-runtime-9.0",
      "release": "RHEL 9",
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    {
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    {
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    {
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    {
      "product": "dotnet-hostfxr-9.0",
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    },
    {
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      "supported": true
    },
    {
      "product": "dotnet-sdk-9.0",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-sdk-9.0",
      "release": "RHEL 9",
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    },
    {
      "product": "dotnet-sdk-9.0-source-built-artifacts",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-sdk-9.0-source-built-artifacts",
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      "fixedVersion": "0:9.0.117-1.el9_8",
      "supported": true
    },
    {
      "product": "dotnet-sdk-aot-9.0",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-sdk-aot-9.0",
      "release": "RHEL 9",
      "fixedVersion": "0:9.0.117-1.el9_8",
      "supported": true
    },
    {
      "product": "dotnet-sdk-dbg-9.0",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-sdk-dbg-9.0",
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      "fixedVersion": "0:9.0.117-1.el9_8",
      "supported": true
    },
    {
      "product": "dotnet-targeting-pack-9.0",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-targeting-pack-9.0",
      "release": "RHEL 9",
      "fixedVersion": "0:9.0.16-1.el9_8",
      "supported": true
    },
    {
      "product": "dotnet-templates-9.0",
      "productUrl": "https://patchblox.com/security/product/linux/dotnet-templates-9.0",
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    {
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  ],
  "cves": [
    {
      "cveId": "CVE-2026-42899",
      "url": "https://patchblox.com/security/cve/CVE-2026-42899",
      "title": "ASP.NET Core Denial of Service Vulnerability",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0243,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}