{
  "cveId": "CVE-2026-56208",
  "url": "https://patchblox.com/security/cve/CVE-2026-56208",
  "summary": "CVE-2026-56208 is fixed in 16 products on 1 platform, first by aom-tools 3.3.0-1ubuntu0.1\u002Besm1, released June 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "firefox: Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nSecu...",
  "description": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.\n\nSecurity Fix(es):\n\n* libaom: libaom: heap buffer overflow in AV1 encoder first-pass stats buffer via LAP mode (CVE-2026-56208)\n\n* firefox: thunderbird: Site isolation issue in the DOM: Navigation component (CVE-2026-15719)\n\n* firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-15718)\n\n* firefox: thunderbird: Mitigation bypass in the Enterprise Policies component (CVE-2026-16390)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: cubeb component (CVE-2026-16350)\n\n* firefox: thunderbird: Information disclosure in the Storage: IndexedDB component (CVE-2026-16391)\n\n* firefox: thunderbird: Site isolation issue in the Networking: HTTP component (CVE-2026-16375)\n\n* firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16356)\n\n* firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-16363)\n\n* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 153 (CVE-2026-16412)\n\n* firefox: thunderbird: Same-origin policy bypass in the Networking: DNS component (CVE-2026-16381)\n\n* firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-16355)\n\n* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38 and Firefox ESR 140.13 (CVE-2026-16361)\n\n* firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16352)\n\n* firefox: thunderbird: Incorrect boundary conditions in the JavaScript: WebAssembly component (CVE-2026-16368)\n\n* firefox: thunderbird: Mitigation bypass in the PDF Viewer component (CVE-2026-16377)\n\n* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR 140.13 and Firefox 153 (CVE-2026-16360)\n\n* firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component (CVE-2026-16362)\n\n* firefox: thunderbird: Site isolation issue in the Graphics: WebRender component (CVE-2026-16358)\n\n* firefox: thunderbird: Site isolation issue in the Networking component (CVE-2026-16387)\n\n* firefox: thunderbird: Same-origin policy bypass in the DOM: Navigation component (CVE-2026-16349)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-16357)\n\n* firefox: thunderbird: Sandbox escape due to use-after-free in the DOM: Navigation component (CVE-2026-16351)\n\n* firefox: thunderbird: Privilege escalation in the DOM: Navigation component (CVE-2026-16371)\n\n* firefox: thunderbird: Privilege escalation in the DOM: Content Processes component (CVE-2026-16379)\n\n* firefox: thunderbird: Information disclosure in the Graphics: ImageLib component (CVE-2026-16354)\n\n* firefox: thunderbird: Information disclosure in the Framework component in DevTools (CVE-2026-16374)\n\n* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-16359)\n\n* firefox: thunderbird: Mitigation bypass in the DOM: Networking component (CVE-2026-16383)\n\n* firefox: thunderbird: Integer overflow in the JavaScript: WebAssembly component (CVE-2026-16369)\n\n* firefox: thunderbird: Invalid pointer in the DOM: Bindings (WebIDL) component (CVE-2026-16353)\n\n* firefox: thunderbird: Privilege escalation in WebExtensions (CVE-2026-16396)\n\n* firefox: thunderbird: Information disclosure in the Networking: WebSockets component (CVE-2026-16405)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2026-06-19T00:00:00Z",
  "severity": "Important",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00454,
  "epssPercentile": 0.39684,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "SVT-AV1",
      "release": "sles 15.6",
      "fixedVersion": "1.8.0-150600.3.2.5",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "SVT-AV1",
      "release": "sles 15.7",
      "fixedVersion": "1.8.0-150600.3.2.5",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "aom",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.6.0-1\u002Bdeb12u3",
      "fix": "DEBIAN-CVE-2026-56208",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-56208",
      "released": "2026-06-19T17:16:30Z"
    },
    {
      "platform": "linux",
      "product": "aom",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.12.1-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-56208",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-56208",
      "released": "2026-06-19T17:16:30Z"
    },
    {
      "platform": "linux",
      "product": "aom",
      "release": "Debian 14",
      "fixedVersion": "3.14.1-1",
      "fix": "DEBIAN-CVE-2026-56208",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-56208",
      "released": "2026-06-19T17:16:30Z"
    },
    {
      "platform": "linux",
      "product": "aom",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "aom-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "aom-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "aom-tools",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.0-1ubuntu0.1\u002Besm1",
      "fix": "aom-tools 3.3.0-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-aom-tools-3.3.0-1ubuntu0.1-esm1",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "aom-tools",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.8.2-2ubuntu0.2",
      "fix": "aom-tools 3.8.2-2ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-aom-tools-3.8.2-2ubuntu0.2",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "aom-tools",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.13.1-2ubuntu0.1",
      "fix": "aom-tools 3.13.1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-aom-tools-3.13.1-2ubuntu0.1",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 10",
      "fixedVersion": "140.13.0-1.el10_0",
      "fix": "RHSA-2026:54181",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-54181",
      "released": "2026-07-31T14:20:33Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 8",
      "fixedVersion": "0:140.13.0-1.el8_10",
      "fix": "RHSA-2026:47105",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47105",
      "released": "2026-07-31T14:18:54Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 9",
      "fixedVersion": "0:140.13.0-1.el9_8",
      "fix": "RHSA-2026:47104",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47104",
      "released": "2026-08-05T15:07:06Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "almalinux 8",
      "fixedVersion": "140.13.0-1.el8_10.alma.1",
      "fix": "ALSA-2026:47105",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47105",
      "released": "2026-07-28T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "almalinux 9",
      "fixedVersion": "140.13.0-1.el9_8.alma.1",
      "fix": "ALSA-2026:47104",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47104",
      "released": "2026-07-28T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "amzn 2023",
      "fixedVersion": "140.12.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1928",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1928",
      "released": "2026-07-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "ol 8",
      "fixedVersion": "0:140.13.0-1.0.1.el8_10",
      "fix": "ELSA-2026-47105",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47105",
      "released": "2026-07-28T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "ol 9",
      "fixedVersion": "0:140.13.0-1.0.1.el9_8",
      "fix": "ELSA-2026-47104",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47104",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "rocky 8",
      "fixedVersion": "0:140.13.0-1.el8_10",
      "fix": "RLSA-2026:47105",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-47105",
      "released": "2026-07-29T18:01:13Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "rocky 9",
      "fixedVersion": "0:140.13.0-1.el9_8",
      "fix": "RLSA-2026:47104",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-47104",
      "released": "2026-08-03T12:03:50Z"
    },
    {
      "platform": "linux",
      "product": "firefox-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "140.12.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-1928",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1928",
      "released": "2026-07-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-debugsource",
      "release": "amzn 2023",
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      "fix": "ALAS2023-2026-1928",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1928",
      "released": "2026-07-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-x11",
      "release": "RHEL 9",
      "fixedVersion": "0:140.13.0-1.el9_8",
      "fix": "RHSA-2026:47104",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-47104",
      "released": "2026-08-05T15:07:06Z"
    },
    {
      "platform": "linux",
      "product": "firefox-x11",
      "release": "almalinux 9",
      "fixedVersion": "140.13.0-1.el9_8.alma.1",
      "fix": "ALSA-2026:47104",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-47104",
      "released": "2026-07-28T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-x11",
      "release": "ol 9",
      "fixedVersion": "0:140.13.0-1.0.1.el9_8",
      "fix": "ELSA-2026-47104",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-47104",
      "released": "2026-07-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libaom",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "libaom",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.11.0-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21061-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21061-1",
      "released": "2026-06-25T19:32:50Z"
    },
    {
      "platform": "linux",
      "product": "libaom",
      "release": "sles 15.6",
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      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "libaom",
      "release": "sles 15.7",
      "fixedVersion": "3.7.1-150600.3.9.1",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "libaom",
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      "fix": "SUSE-SU-2026:22369-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22369-1",
      "released": "2026-06-25T19:33:13Z"
    },
    {
      "platform": "linux",
      "product": "libaom-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "libaom-devel",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "libaom-devel-doc",
      "release": "opensuse-leap 16.0",
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      "fix": "OPENSUSE-SU-2026:21061-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21061-1",
      "released": "2026-06-25T19:32:50Z"
    },
    {
      "platform": "linux",
      "product": "libaom-devel-doc",
      "release": "sles 15.6",
      "fixedVersion": "3.7.1-150600.3.9.3",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "libaom-devel-doc",
      "release": "sles 15.7",
      "fixedVersion": "3.7.1-150600.3.9.3",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "libaom-devel-docs",
      "release": "Fedora 43",
      "fixedVersion": "3.15.2-1.fc43",
      "fix": "FEDORA-2026-FD075F5751",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-fd075f5751",
      "released": "2026-11-07T01:05:44Z"
    },
    {
      "platform": "linux",
      "product": "libaom3",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.0-1ubuntu0.1\u002Besm1",
      "fix": "libaom3 3.3.0-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libaom3-3.3.0-1ubuntu0.1-esm1",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libaom3",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "3.8.2-2ubuntu0.2",
      "fix": "libaom3 3.8.2-2ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libaom3-3.8.2-2ubuntu0.2",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libaom3",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.13.1-2ubuntu0.1",
      "fix": "libaom3 3.13.1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libaom3-3.13.1-2ubuntu0.1",
      "released": "2026-06-19T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libyuv",
      "release": "sles 15.6",
      "fixedVersion": "20230517\u002Ba377993-150600.3.4.2",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    },
    {
      "platform": "linux",
      "product": "libyuv",
      "release": "sles 15.7",
      "fixedVersion": "20230517\u002Ba377993-150600.3.4.2",
      "fix": "SUSE-SU-2026:3224-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3224-1",
      "released": "2026-07-23T18:34:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}