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

まず、対象バージョン thunderbird-140.17.0-1.el10_2 と、Issue に記載されている影響を受ける 5 つのパッケージアーキテクチャから始めます。ファイル、ビルドコマンド、テストは指定されていないため、まずパッケージリリース更新に使用されるリポジトリのエントリまたはワークフローを特定します。更新が記載されたすべてのアーキテクチャをカバーし、公開済みとして検証できるようになった時点で作業が完了です。

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