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CVE-2026-4692

Medium priority
Ignored

Sandbox escape in the Responsive Design Mode component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
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CVE-2026-4691

Medium priority
Ignored

Use-after-free in the CSS Parsing and Computation component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
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CVE-2026-4690

Medium priority
Ignored

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4689

Medium priority
Ignored

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

mozjs91, firefox, thunderbird, mozjs38, mozjs52...

Package 20.04 LTS
mozjs91
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4688

Medium priority
Ignored

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4687

Medium priority
Ignored

Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4686

Medium priority
Ignored

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4685

Medium priority
Ignored

Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4684

Medium priority
Ignored

Race condition, use-after-free in the Graphics: WebRender component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 20.04 LTS
firefox
thunderbird
mozjs38
mozjs52 Ignored
mozjs68 Ignored
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4519

Medium priority
Needs evaluation

The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing...

14 affected packages

jython, pypy3, python2.7, python3.4, python3.5...

Package 20.04 LTS
jython Needs evaluation
pypy3 Needs evaluation
python2.7 Needs evaluation
python3.4
python3.5
python3.6
python3.7
python3.8 Needs evaluation
python3.9 Needs evaluation
python3.10
python3.11
python3.12
python3.13
python3.14
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