thunderbird-153.5.0-1.el9_8.ML.1

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

* libexpat: denial of service via crafted XML input (CVE-2026-45186)
* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109764)
* firefox: Spoofing issue in the DOM: Web Serial component (CVE-2026-109770)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109783)
* firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)
* firefox: Use-after-free in the XML component (CVE-2026-109718)
* firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)
* firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)
* firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)
* firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)
* firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)
* firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component (CVE-2026-109709)
* firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component (CVE-2026-109705)
* firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)
* firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)
* firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)
* firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)
* firefox: Other issue in the DOM: File component (CVE-2026-109744)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)
* firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)
* firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)
* firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)
* firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)
* firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-109734)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)
* firefox: Sandbox escape due to incorrect boundary conditions in the Networking component (CVE-2026-109708)
* firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)
* firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)
* firefox: Race condition in the XPCOM component (CVE-2026-109776)
* firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)
* firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)
* firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)
* firefox: Information disclosure in the Storage: IndexedDB component (CVE-2026-109777)
* firefox: Use-after-free in the SVG component (CVE-2026-109726)
* firefox: Integer overflow in the Graphics component (CVE-2026-109730)
* firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)
* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)
* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109766)
* firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)
* firefox: Site isolation issue in the Networking component (CVE-2026-109759)
* firefox: Privilege escalation in the WebExtensions component (CVE-2026-109778)
* firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)
* firefox: Race condition, use-after-free in the Graphics: Text component (CVE-2026-109765)
* firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)
* firefox: Information disclosure in the Networking component (CVE-2026-109751)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)
* firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)
* firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)
* firefox: Frame poisoning in the Layout component (CVE-2026-109736)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)
* firefox: Information disclosure in the Networking component (CVE-2026-109767)
* firefox: Denial-of-service in the WebRTC component (CVE-2026-109775)
* firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)
* firefox: Denial-of-service in the Printing: Output component (CVE-2026-109781)
* firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-109710)
* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-109731)
* firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)
* firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

Bug Fix(es) and Enhancement(s):

* Thunderbird ESR 153 rebase [rhel-9.8.z] (JIRA:RHEL-175199)

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.

CVE-2026-109704
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109705
Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.
CVE-2026-109706
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109707
Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.
CVE-2026-109708
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.
CVE-2026-109709
Information disclosure, privilege escalation in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109710
Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109711
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109712
Sandbox escape due to uninitialized memory in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109713
Use-after-free in the Crash Reporting component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109715
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109716
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109717
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109718
Use-after-free in the XML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109719
Race condition, use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109720
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109721
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109722
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109723
Integer overflow in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109724
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109725
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109726
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109727
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109728
Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109729
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109730
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109731
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109732
Use-after-free in the DOM: Streams component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109733
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109734
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109736
Frame poisoning in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109737
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109738
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109740
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109741
Use-after-free in the Storage: Bucket File System component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109742
Information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109743
Privilege escalation in the Panning and Zooming component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109744
Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109745
Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109751
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109752
Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109753
Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109754
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109756
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109757
Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109759
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109760
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109762
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109763
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109764
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109765
Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109766
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109767
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109770
Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109775
Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109776
Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109777
Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109778
Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109781
Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109782
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
CVE-2026-109783
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
CVE-2026-45186
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.