{
  "fix": "ALSA-2026:76764",
  "url": "https://patchblox.com/security/fix/linux/alsa-2026-76764",
  "summary": "ALSA-2026:76764, released October 6, 2026, fixes 43 CVEs in firefox (version 140.17.0-1.el10_2). None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "firefox security update",
  "released": "2026-10-06T00:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-100788, rated Critical",
  "supported": true,
  "cveCount": 43,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00415,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://osv.dev/vulnerability/ALSA-2026:76764",
  "appliesTo": [
    {
      "product": "firefox",
      "productUrl": "https://patchblox.com/security/product/linux/firefox",
      "release": "almalinux 10",
      "fixedVersion": "140.17.0-1.el10_2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-100788",
      "url": "https://patchblox.com/security/cve/CVE-2026-100788",
      "title": "Invalid pointer in the JavaScript: WebAssembly component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.00415,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100775",
      "url": "https://patchblox.com/security/cve/CVE-2026-100775",
      "title": "Sandbox escape in the Graphics component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00328,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100781",
      "url": "https://patchblox.com/security/cve/CVE-2026-100781",
      "title": "Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00328,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100794",
      "url": "https://patchblox.com/security/cve/CVE-2026-100794",
      "title": "Sandbox escape due to incorrect boundary conditions in the Internationalization component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00321,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100762",
      "url": "https://patchblox.com/security/cve/CVE-2026-100762",
      "title": "Sandbox escape due to use-after-free in the DOM: Content Processes component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100770",
      "url": "https://patchblox.com/security/cve/CVE-2026-100770",
      "title": "Sandbox escape due to use-after-free in the DOM: Content Processes component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100778",
      "url": "https://patchblox.com/security/cve/CVE-2026-100778",
      "title": "Sandbox escape due to use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100786",
      "url": "https://patchblox.com/security/cve/CVE-2026-100786",
      "title": "Sandbox escape due to use-after-free in the Graphics component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100758",
      "url": "https://patchblox.com/security/cve/CVE-2026-100758",
      "title": "Sandbox escape in the DOM: Navigation component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00304,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100811",
      "url": "https://patchblox.com/security/cve/CVE-2026-100811",
      "title": "Sandbox escape due to use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00265,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100818",
      "url": "https://patchblox.com/security/cve/CVE-2026-100818",
      "title": "Sandbox escape due to use-after-free in the Widget: Gtk component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00265,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100819",
      "url": "https://patchblox.com/security/cve/CVE-2026-100819",
      "title": "Sandbox escape due to incorrect boundary conditions in the XPCOM component",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.6,
      "epss": 0.00264,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100773",
      "url": "https://patchblox.com/security/cve/CVE-2026-100773",
      "title": "Use-after-free in the Storage: IndexedDB component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00396,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100791",
      "url": "https://patchblox.com/security/cve/CVE-2026-100791",
      "title": "Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00396,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100783",
      "url": "https://patchblox.com/security/cve/CVE-2026-100783",
      "title": "Uninitialized memory in the Audio/Video component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00347,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-92035",
      "url": "https://patchblox.com/security/cve/CVE-2026-92035",
      "title": "Sandbox escape due to incorrect boundary conditions in the Graphics component",
      "priority": "High",
      "severity": "important",
      "cvss": 9.6,
      "epss": 0.00328,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100767",
      "url": "https://patchblox.com/security/cve/CVE-2026-100767",
      "title": "Use-after-free in the Networking: Cache component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100779",
      "url": "https://patchblox.com/security/cve/CVE-2026-100779",
      "title": "Use-after-free in the XSLT component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100784",
      "url": "https://patchblox.com/security/cve/CVE-2026-100784",
      "title": "Use-after-free in the Layout: Text and Fonts component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100757",
      "url": "https://patchblox.com/security/cve/CVE-2026-100757",
      "title": "Use-after-free in the Widget component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100774",
      "url": "https://patchblox.com/security/cve/CVE-2026-100774",
      "title": "Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100777",
      "url": "https://patchblox.com/security/cve/CVE-2026-100777",
      "title": "Use-after-free in the Graphics: Canvas2D component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100780",
      "url": "https://patchblox.com/security/cve/CVE-2026-100780",
      "title": "Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100785",
      "url": "https://patchblox.com/security/cve/CVE-2026-100785",
      "title": "Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100789",
      "url": "https://patchblox.com/security/cve/CVE-2026-100789",
      "title": "Use-after-free in the Graphics: Canvas2D component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100790",
      "url": "https://patchblox.com/security/cve/CVE-2026-100790",
      "title": "Use-after-free in the XSLT component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00319,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100769",
      "url": "https://patchblox.com/security/cve/CVE-2026-100769",
      "title": "Use-after-free in the JavaScript: WebAssembly component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00318,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100772",
      "url": "https://patchblox.com/security/cve/CVE-2026-100772",
      "title": "Use-after-free in the DOM: Core \u0026 HTML component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00312,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100776",
      "url": "https://patchblox.com/security/cve/CVE-2026-100776",
      "title": "Use-after-free in the JavaScript: WebAssembly component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00312,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100756",
      "url": "https://patchblox.com/security/cve/CVE-2026-100756",
      "title": "Incorrect boundary conditions in the Audio/Video: Playback component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00308,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100759",
      "url": "https://patchblox.com/security/cve/CVE-2026-100759",
      "title": "Uninitialized memory in the Storage: Quota Manager component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00308,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100771",
      "url": "https://patchblox.com/security/cve/CVE-2026-100771",
      "title": "Undefined behavior in the DOM: Streams component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00308,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100801",
      "url": "https://patchblox.com/security/cve/CVE-2026-100801",
      "title": "Privilege escalation in the DLL Services component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100792",
      "url": "https://patchblox.com/security/cve/CVE-2026-100792",
      "title": "JIT miscompilation in the JavaScript: WebAssembly component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00262,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100782",
      "url": "https://patchblox.com/security/cve/CVE-2026-100782",
      "title": "Privilege escalation due to incorrect boundary conditions in the Graphics component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00259,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100797",
      "url": "https://patchblox.com/security/cve/CVE-2026-100797",
      "title": "Privilege escalation due to use-after-free in the Graphics: WebRender component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00251,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100766",
      "url": "https://patchblox.com/security/cve/CVE-2026-100766",
      "title": "Information disclosure in the Networking: JAR component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00251,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100832",
      "url": "https://patchblox.com/security/cve/CVE-2026-100832",
      "title": "Use-after-free in the Graphics: Canvas2D component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00245,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-96869",
      "url": "https://patchblox.com/security/cve/CVE-2026-96869",
      "title": "Information disclosure in the Networking component",
      "priority": "High",
      "severity": "important",
      "cvss": 7.5,
      "epss": 0.00243,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100820",
      "url": "https://patchblox.com/security/cve/CVE-2026-100820",
      "title": "Privilege escalation in the Address Bar component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00238,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100807",
      "url": "https://patchblox.com/security/cve/CVE-2026-100807",
      "title": "Privilege escalation in the DOM: Service Workers component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00234,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100803",
      "url": "https://patchblox.com/security/cve/CVE-2026-100803",
      "title": "Same-origin policy bypass in the WebExtensions component",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00167,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-100821",
      "url": "https://patchblox.com/security/cve/CVE-2026-100821",
      "title": "Site isolation issue in the Panning and Zooming component",
      "priority": "High",
      "severity": "medium",
      "cvss": 7.5,
      "epss": 0.00143,
      "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"
  }
}