alsa-2026:0026
Vulnerability from osv_almalinux
Published
2026-01-05 00:00
Modified
2026-01-05 10:18
Summary
Important: thunderbird security update
Details

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146 (CVE-2025-14333)
  • firefox: Use-after-free in the WebRTC: Signaling component (CVE-2025-14321)
  • firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14325)
  • firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2025-14322)
  • firefox: Privilege escalation in the Netmonitor component (CVE-2025-14328)
  • firefox: Privilege escalation in the Netmonitor component (CVE-2025-14329)
  • firefox: Same-origin policy bypass in the Request Handling component (CVE-2025-14331)
  • firefox: Privilege escalation in the DOM: Notifications component (CVE-2025-14323)
  • firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14330)
  • firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14324)

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.

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "thunderbird"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "140.6.0-1.el8_10.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Mozilla Thunderbird is a standalone mail and newsgroup client.  \n\nSecurity Fix(es):  \n\n  * firefox: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146 (CVE-2025-14333)\n  * firefox: Use-after-free in the WebRTC: Signaling component (CVE-2025-14321)\n  * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14325)\n  * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2025-14322)\n  * firefox: Privilege escalation in the Netmonitor component (CVE-2025-14328)\n  * firefox: Privilege escalation in the Netmonitor component (CVE-2025-14329)\n  * firefox: Same-origin policy bypass in the Request Handling component (CVE-2025-14331)\n  * firefox: Privilege escalation in the DOM: Notifications component (CVE-2025-14323)\n  * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14330)\n  * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2025-14324)\n\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.\n",
  "id": "ALSA-2026:0026",
  "modified": "2026-01-05T10:18:14Z",
  "published": "2026-01-05T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:0026"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14321"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14322"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14323"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14324"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14325"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14328"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14329"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14330"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14331"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14333"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420502"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420503"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420504"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420506"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420508"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420509"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420512"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420513"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420516"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420517"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-0026.html"
    }
  ],
  "related": [
    "CVE-2025-14333",
    "CVE-2025-14321",
    "CVE-2025-14325",
    "CVE-2025-14322",
    "CVE-2025-14328",
    "CVE-2025-14329",
    "CVE-2025-14331",
    "CVE-2025-14323",
    "CVE-2025-14330",
    "CVE-2025-14324"
  ],
  "summary": "Important: thunderbird security update"
}


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  • 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.
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