{
  "fix": "ALAS2023-2026-1613",
  "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1613",
  "summary": "ALAS2023-2026-1613, released April 27, 2026, fixes 5 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": "2026-04-27T09:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-34002, rated Critical",
  "supported": true,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00489,
  "maxCvss": 9.1,
  "vendorAdvisory": "https://alas.aws.amazon.com/AL2023/ALAS-2026-1613.html",
  "appliesTo": [
    {
      "product": "xorg-x11-server-Xwayland",
      "productUrl": "https://patchblox.com/security/product/linux/xorg-x11-server-xwayland",
      "release": "amzn 2023",
      "fixedVersion": "24.1.3-1.amzn2023.0.4",
      "supported": true
    },
    {
      "product": "xorg-x11-server-Xwayland-debuginfo",
      "productUrl": "https://patchblox.com/security/product/linux/xorg-x11-server-xwayland-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "24.1.3-1.amzn2023.0.4",
      "supported": true
    },
    {
      "product": "xorg-x11-server-Xwayland-debugsource",
      "productUrl": "https://patchblox.com/security/product/linux/xorg-x11-server-xwayland-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "24.1.3-1.amzn2023.0.4",
      "supported": true
    },
    {
      "product": "xorg-x11-server-Xwayland-devel",
      "productUrl": "https://patchblox.com/security/product/linux/xorg-x11-server-xwayland-devel",
      "release": "amzn 2023",
      "fixedVersion": "24.1.3-1.amzn2023.0.4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-34000",
      "url": "https://patchblox.com/security/cve/CVE-2026-34000",
      "title": "xorg-server: A flaw was found in the X.Org X server",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00489,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-34002",
      "url": "https://patchblox.com/security/cve/CVE-2026-34002",
      "title": "xorg-x11-server: This update for xorg-x11-server fixes the following issues:\n\n- CVE-2026-33999: XKB integer underflow in XkbSetCompatM...",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00489,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-33999",
      "url": "https://patchblox.com/security/cve/CVE-2026-33999",
      "title": "Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.0038,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-34001",
      "url": "https://patchblox.com/security/cve/CVE-2026-34001",
      "title": "xorg-x11-server-common: X.Org is an open-source implementation of the X Window System",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00264,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-34003",
      "url": "https://patchblox.com/security/cve/CVE-2026-34003",
      "title": "xorg-x11-server-common: X.Org is an open-source implementation of the X Window System",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0025,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T13:56:55Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}