{
  "fix": "RHSA-2026:84584",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-84584",
  "summary": "RHSA-2026:84584, released October 19, 2026, fixes 11 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 4 packages",
  "released": "2026-10-19T16:28:24Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-87512, rated Critical",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00549,
  "maxCvss": 9.6,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:84584",
  "appliesTo": [
    {
      "product": "webkit2gtk3",
      "productUrl": "https://patchblox.com/security/product/linux/webkit2gtk3",
      "release": "RHEL 8",
      "fixedVersion": "0:2.54.1-1.el8_10",
      "supported": true
    },
    {
      "product": "webkit2gtk3-devel",
      "productUrl": "https://patchblox.com/security/product/linux/webkit2gtk3-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:2.54.1-1.el8_10",
      "supported": true
    },
    {
      "product": "webkit2gtk3-jsc",
      "productUrl": "https://patchblox.com/security/product/linux/webkit2gtk3-jsc",
      "release": "RHEL 8",
      "fixedVersion": "0:2.54.1-1.el8_10",
      "supported": true
    },
    {
      "product": "webkit2gtk3-jsc-devel",
      "productUrl": "https://patchblox.com/security/product/linux/webkit2gtk3-jsc-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:2.54.1-1.el8_10",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-87512",
      "url": "https://patchblox.com/security/cve/CVE-2026-87512",
      "title": "Chromium CVE-2026-87512: Use after free in ANGLE",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00549,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87654",
      "url": "https://patchblox.com/security/cve/CVE-2026-87654",
      "title": "Chromium CVE-2026-87654: Buffer overflow in ANGLE",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00398,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87500",
      "url": "https://patchblox.com/security/cve/CVE-2026-87500",
      "title": "Chromium CVE-2026-87500: Improper validation of array index in ANGLE",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00358,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87621",
      "url": "https://patchblox.com/security/cve/CVE-2026-87621",
      "title": "Chromium CVE-2026-87621: Out of bounds write in ANGLE",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00358,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91738",
      "url": "https://patchblox.com/security/cve/CVE-2026-91738",
      "title": "Chromium CVE-2026-91738: Improper input validation",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.6,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87604",
      "url": "https://patchblox.com/security/cve/CVE-2026-87604",
      "title": "Chromium CVE-2026-87604: Out of bounds read in ANGLE",
      "priority": "High",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.0032,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87648",
      "url": "https://patchblox.com/security/cve/CVE-2026-87648",
      "title": "Chromium CVE-2026-87648: Use after free in ANGLE",
      "priority": "High",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.00312,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-91720",
      "url": "https://patchblox.com/security/cve/CVE-2026-91720",
      "title": "Chromium CVE-2026-91720: Uninitialized resource",
      "priority": "High",
      "severity": "Important",
      "cvss": 9.6,
      "epss": 0.00266,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87586",
      "url": "https://patchblox.com/security/cve/CVE-2026-87586",
      "title": "Chromium CVE-2026-87586: Out of bounds read in ANGLE",
      "priority": "High",
      "severity": "medium",
      "cvss": 9.6,
      "epss": 0.00249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87596",
      "url": "https://patchblox.com/security/cve/CVE-2026-87596",
      "title": "Chromium CVE-2026-87596: Out of bounds read in ANGLE",
      "priority": "High",
      "severity": "medium",
      "cvss": 9.6,
      "epss": 0.00249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87602",
      "url": "https://patchblox.com/security/cve/CVE-2026-87602",
      "title": "Chromium CVE-2026-87602: Out of bounds read in ANGLE",
      "priority": "High",
      "severity": "medium",
      "cvss": 9.6,
      "epss": 0.00163,
      "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"
  }
}