{
  "fix": "ALSA-2026:89756",
  "url": "https://patchblox.com/security/fix/linux/alsa-2026-89756",
  "summary": "ALSA-2026:89756, released November 7, 2026, fixes 41 CVEs in firefox (version 153.5.0-1.el8_10). None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "firefox security update",
  "released": "2026-11-07T00:40:18Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-109745, rated Critical",
  "supported": true,
  "cveCount": 41,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00479,
  "maxCvss": 9.6,
  "vendorAdvisory": "https://osv.dev/vulnerability/ALSA-2026:89756",
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "almalinux 8",
      "fixedVersion": "153.5.0-1.el8_10",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-109745",
      "url": "https://patchblox.com/security/cve/CVE-2026-109745",
      "title": "firefox-esr: Sandbox escape due to uninitialized memory in the DOM: Web Serial component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00349,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109708",
      "url": "https://patchblox.com/security/cve/CVE-2026-109708",
      "title": "firefox-esr: Sandbox escape due to incorrect boundary conditions in the Networking component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00334,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109705",
      "url": "https://patchblox.com/security/cve/CVE-2026-109705",
      "title": "thunderbird: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00325,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109707",
      "url": "https://patchblox.com/security/cve/CVE-2026-109707",
      "title": "firefox-esr: Sandbox escape due to use-after-free in the Networking component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00325,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45186",
      "url": "https://patchblox.com/security/cve/CVE-2026-45186",
      "title": "In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.",
      "priority": "High",
      "severity": "Low",
      "cvss": 8.2,
      "epss": 0.00479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109733",
      "url": "https://patchblox.com/security/cve/CVE-2026-109733",
      "title": "thunderbird: JIT miscompilation in the JavaScript Engine: JIT component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00462,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109704",
      "url": "https://patchblox.com/security/cve/CVE-2026-109704",
      "title": "firefox: Privilege escalation in the Application Update component",
      "priority": "High",
      "severity": "important",
      "cvss": 8.2,
      "epss": 0.00409,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109730",
      "url": "https://patchblox.com/security/cve/CVE-2026-109730",
      "title": "thunderbird: Integer overflow in the Graphics component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00365,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109743",
      "url": "https://patchblox.com/security/cve/CVE-2026-109743",
      "title": "thunderbird: Privilege escalation in the Panning and Zooming component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00351,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109740",
      "url": "https://patchblox.com/security/cve/CVE-2026-109740",
      "title": "firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nSecu...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.2,
      "epss": 0.00349,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109753",
      "url": "https://patchblox.com/security/cve/CVE-2026-109753",
      "title": "thunderbird: Incorrect boundary conditions in the Layout component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00343,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109737",
      "url": "https://patchblox.com/security/cve/CVE-2026-109737",
      "title": "firefox-esr: Mitigation bypass in the Enterprise Policies component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.0034,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109709",
      "url": "https://patchblox.com/security/cve/CVE-2026-109709",
      "title": "thunderbird: Information disclosure, privilege escalation in the Security: Process Sandboxing component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109736",
      "url": "https://patchblox.com/security/cve/CVE-2026-109736",
      "title": "firefox-esr: Frame poisoning in the Layout component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00324,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109744",
      "url": "https://patchblox.com/security/cve/CVE-2026-109744",
      "title": "firefox-esr: Other issue in the DOM: File component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00324,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109715",
      "url": "https://patchblox.com/security/cve/CVE-2026-109715",
      "title": "firefox-esr: Incorrect boundary conditions in the JavaScript Engine component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00314,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109716",
      "url": "https://patchblox.com/security/cve/CVE-2026-109716",
      "title": "firefox-esr: Incorrect boundary conditions in the JavaScript Engine component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00314,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109722",
      "url": "https://patchblox.com/security/cve/CVE-2026-109722",
      "title": "firefox-esr: JIT miscompilation in the JavaScript Engine: JIT component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00314,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109721",
      "url": "https://patchblox.com/security/cve/CVE-2026-109721",
      "title": "firefox-esr: Incorrect boundary conditions in the JavaScript Engine: JIT component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00278,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109782",
      "url": "https://patchblox.com/security/cve/CVE-2026-109782",
      "title": "firefox-esr: Mitigation bypass in the File Handling component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.3,
      "epss": 0.00273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109720",
      "url": "https://patchblox.com/security/cve/CVE-2026-109720",
      "title": "firefox-esr: JIT miscompilation in the JavaScript: WebAssembly component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00264,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109742",
      "url": "https://patchblox.com/security/cve/CVE-2026-109742",
      "title": "thunderbird: Information disclosure in the PDF Viewer component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.0026,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109751",
      "url": "https://patchblox.com/security/cve/CVE-2026-109751",
      "title": "thunderbird: Information disclosure in the Networking component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.0026,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109729",
      "url": "https://patchblox.com/security/cve/CVE-2026-109729",
      "title": "thunderbird: Use-after-free in the JavaScript Engine: JIT component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00242,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109732",
      "url": "https://patchblox.com/security/cve/CVE-2026-109732",
      "title": "thunderbird: Use-after-free in the DOM: Streams component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00242,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109752",
      "url": "https://patchblox.com/security/cve/CVE-2026-109752",
      "title": "thunderbird: Use-after-free in the DOM: Workers component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00231,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109738",
      "url": "https://patchblox.com/security/cve/CVE-2026-109738",
      "title": "thunderbird: Use-after-free in the Audio/Video: Playback component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00231,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109741",
      "url": "https://patchblox.com/security/cve/CVE-2026-109741",
      "title": "thunderbird: Use-after-free in the Storage: Bucket File System component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00231,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109718",
      "url": "https://patchblox.com/security/cve/CVE-2026-109718",
      "title": "thunderbird: Use-after-free in the XML component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109725",
      "url": "https://patchblox.com/security/cve/CVE-2026-109725",
      "title": "thunderbird: Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109728",
      "url": "https://patchblox.com/security/cve/CVE-2026-109728",
      "title": "thunderbird: Use-after-free in the DOM: Animation component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109706",
      "url": "https://patchblox.com/security/cve/CVE-2026-109706",
      "title": "thunderbird: Use-after-free in the Storage: IndexedDB component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109726",
      "url": "https://patchblox.com/security/cve/CVE-2026-109726",
      "title": "thunderbird: Use-after-free in the SVG component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109727",
      "url": "https://patchblox.com/security/cve/CVE-2026-109727",
      "title": "thunderbird: Use-after-free in the Audio/Video component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109712",
      "url": "https://patchblox.com/security/cve/CVE-2026-109712",
      "title": "firefox-esr: Sandbox escape due to uninitialized memory in the Graphics component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00224,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109711",
      "url": "https://patchblox.com/security/cve/CVE-2026-109711",
      "title": "thunderbird: Use-after-free in the Graphics: Canvas2D component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109713",
      "url": "https://patchblox.com/security/cve/CVE-2026-109713",
      "title": "thunderbird: Use-after-free in the Crash Reporting component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109723",
      "url": "https://patchblox.com/security/cve/CVE-2026-109723",
      "title": "thunderbird: Integer overflow in the Layout: Text and Fonts component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109724",
      "url": "https://patchblox.com/security/cve/CVE-2026-109724",
      "title": "thunderbird: Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.8,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109717",
      "url": "https://patchblox.com/security/cve/CVE-2026-109717",
      "title": "thunderbird: Use-after-free in the DOM: Bindings (WebIDL) component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-109719",
      "url": "https://patchblox.com/security/cve/CVE-2026-109719",
      "title": "thunderbird: Race condition, use-after-free in the Graphics: CanvasWebGL component",
      "priority": "High",
      "severity": "medium",
      "cvss": 8.2,
      "epss": 0.00172,
      "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"
  }
}