rlsa-2026:47105
Vulnerability from osv_rocky
Published
2026-07-29 18:01
Modified
2026-07-30 12:08
Summary
Important: firefox security update
Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libaom: libaom: heap buffer overflow in AV1 encoder first-pass stats buffer via LAP mode (CVE-2026-56208)

  • firefox: thunderbird: Site isolation issue in the DOM: Navigation component (CVE-2026-15719)

  • firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-15718)

  • firefox: thunderbird: Mitigation bypass in the Enterprise Policies component (CVE-2026-16390)

  • firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: cubeb component (CVE-2026-16350)

  • firefox: thunderbird: Information disclosure in the Storage: IndexedDB component (CVE-2026-16391)

  • firefox: thunderbird: Site isolation issue in the Networking: HTTP component (CVE-2026-16375)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16356)

  • firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-16363)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 153 (CVE-2026-16412)

  • firefox: thunderbird: Same-origin policy bypass in the Networking: DNS component (CVE-2026-16381)

  • firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-16355)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38 and Firefox ESR 140.13 (CVE-2026-16361)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16352)

  • firefox: thunderbird: Incorrect boundary conditions in the JavaScript: WebAssembly component (CVE-2026-16368)

  • firefox: thunderbird: Mitigation bypass in the PDF Viewer component (CVE-2026-16377)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR 140.13 and Firefox 153 (CVE-2026-16360)

  • firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component (CVE-2026-16362)

  • firefox: thunderbird: Site isolation issue in the Graphics: WebRender component (CVE-2026-16358)

  • firefox: thunderbird: Site isolation issue in the Networking component (CVE-2026-16387)

  • firefox: thunderbird: Same-origin policy bypass in the DOM: Navigation component (CVE-2026-16349)

  • firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-16357)

  • firefox: thunderbird: Sandbox escape due to use-after-free in the DOM: Navigation component (CVE-2026-16351)

  • firefox: thunderbird: Privilege escalation in the DOM: Navigation component (CVE-2026-16371)

  • firefox: thunderbird: Privilege escalation in the DOM: Content Processes component (CVE-2026-16379)

  • firefox: thunderbird: Information disclosure in the Graphics: ImageLib component (CVE-2026-16354)

  • firefox: thunderbird: Information disclosure in the Framework component in DevTools (CVE-2026-16374)

  • firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-16359)

  • firefox: thunderbird: Mitigation bypass in the DOM: Networking component (CVE-2026-16383)

  • firefox: thunderbird: Integer overflow in the JavaScript: WebAssembly component (CVE-2026-16369)

  • firefox: thunderbird: Invalid pointer in the DOM: Bindings (WebIDL) component (CVE-2026-16353)

  • firefox: thunderbird: Privilege escalation in WebExtensions (CVE-2026-16396)

  • firefox: thunderbird: Information disclosure in the Networking: WebSockets component (CVE-2026-16405)

For 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.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
https://errata.rockylinux.org/RLSA-2026:47105 ADVISORY
https://bugzilla.redhat.com/show_bug.cgi?id=2490799 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2499973 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2499974 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503415 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503416 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503420 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503423 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503425 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503430 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503432 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503434 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503439 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503440 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503444 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503451 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503454 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503456 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503463 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503472 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503473 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503485 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503489 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503491 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503497 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503498 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503500 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503501 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503505 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503512 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503513 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503517 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503521 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2503527 REPORT
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:8",
        "name": "firefox",
        "purl": "pkg:rpm/rocky-linux/firefox?distro=rocky-linux-8\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:140.13.0-1.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "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.",
  "id": "RLSA-2026:47105",
  "modified": "2026-07-30T12:08:38.858062Z",
  "published": "2026-07-29T18:01:13.110756Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:47105"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490799"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499973"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499974"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503415"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503416"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503420"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503423"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503425"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503430"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503432"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503434"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503439"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503440"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503444"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503451"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503454"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503456"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503463"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503472"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503473"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503485"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503489"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503491"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503497"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503498"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503500"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503501"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503505"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503512"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503513"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503517"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503521"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503527"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: firefox security update",
  "upstream": [
    "CVE-2026-15718",
    "CVE-2026-15719",
    "CVE-2026-16349",
    "CVE-2026-16350",
    "CVE-2026-16351",
    "CVE-2026-16352",
    "CVE-2026-16353",
    "CVE-2026-16354",
    "CVE-2026-16355",
    "CVE-2026-16356",
    "CVE-2026-16357",
    "CVE-2026-16358",
    "CVE-2026-16359",
    "CVE-2026-16360",
    "CVE-2026-16361",
    "CVE-2026-16362",
    "CVE-2026-16363",
    "CVE-2026-16368",
    "CVE-2026-16369",
    "CVE-2026-16371",
    "CVE-2026-16374",
    "CVE-2026-16375",
    "CVE-2026-16377",
    "CVE-2026-16379",
    "CVE-2026-16381",
    "CVE-2026-16383",
    "CVE-2026-16387",
    "CVE-2026-16390",
    "CVE-2026-16391",
    "CVE-2026-16396",
    "CVE-2026-16405",
    "CVE-2026-16412",
    "CVE-2026-56208"
  ]
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.