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Release thunderbird-140.17.0-1.el10_2 ALSA-2026:80674

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
65/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Domain
release, security

Research direction

Start with the target version thunderbird-140.17.0-1.el10_2 and the five affected package architectures listed in the issue. No files, build commands, or tests are named, so first locate the repository entry or workflow used for package release updates. The work is done when the update covers all listed architectures and can be verified as published.

Written by the indexing model from the issue text.

Description

thunderbird security update
Severity: Important
Description
Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100832)
  • firefox: Use-after-free in the Layout: Text and Fonts component (CVE-2026-100784)
  • firefox: thunderbird: Privilege escalation in the DLL Services component (CVE-2026-100801)
  • firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Internationalization component (CVE-2026-100794)
  • firefox: thunderbird: Privilege escalation in the Address Bar component (CVE-2026-100820)
  • firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100777)
  • firefox: thunderbird: Information disclosure in the Networking: JAR component (CVE-2026-100766)
  • firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100779)
  • firefox: thunderbird: Privilege escalation in the DOM: Service Workers component (CVE-2026-100807)
  • firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-100792)
  • firefox: Privilege escalation due to use-after-free in the Graphics: WebRender component (CVE-2026-100797)
  • firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the XPCOM component (CVE-2026-100819)
  • firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100776)
  • firefox: thunderbird: Use-after-free in the Widget component (CVE-2026-100757)
  • firefox: Sandbox escape due to use-after-free in the Graphics component (CVE-2026-100786)
  • firefox: thunderbird: Information disclosure in the Networking component (CVE-2026-96869)
  • firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component (CVE-2026-100770)
  • firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100769)
  • firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100791)
  • firefox: thunderbird: Sandbox escape due to use-after-free in the Widget: Gtk component (CVE-2026-100818)
  • firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics component (CVE-2026-100782)
  • firefox: firefox: Sandbox escape via use-after-free in DOM component (CVE-2026-100811)
  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100772)
  • firefox: thunderbird: Uninitialized memory in the Storage: Quota Manager component (CVE-2026-100759)
  • firefox: Sandbox escape due to use-after-free in the DOM: Core & HTML component (CVE-2026-100778)
  • firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-100758)
  • firefox: thunderbird: Sandbox escape in the Graphics component (CVE-2026-100775)
  • firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-100781)
  • firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100774)
  • firefox: thunderbird: Same-origin policy bypass in the WebExtensions component (CVE-2026-100803)
  • firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100789)
  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100785)
  • firefox: thunderbird: Site isolation issue in the Panning and Zooming component (CVE-2026-100821)
  • firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-100788)
  • firefox: thunderbird: Undefined behavior in the DOM: Streams component (CVE-2026-100771)
  • firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component (CVE-2026-100762)
  • firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100790)
  • firefox: thunderbird: Use-after-free in the Storage: IndexedDB component (CVE-2026-100773)
  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100780)
  • firefox: thunderbird: Use-after-free in the Networking: Cache component (CVE-2026-100767)
  • firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component (CVE-2026-100756)
  • firefox: thunderbird: Uninitialized memory in the Audio/Video component (CVE-2026-100783)

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.

Affected packages:
thunderbird-140.17.0-1.el10_2.x86_64
thunderbird-140.17.0-1.el10_2.s390x
thunderbird-140.17.0-1.el10_2.ppc64le
thunderbird-140.17.0-1.el10_2.aarch64
thunderbird-140.17.0-1.el10_2.x86_64_v2

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