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CVE-2026-4701

Medium priority
Not affected

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

9 affected packages

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

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4700

Medium priority
Not affected

Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

9 affected packages

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

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4699

Medium priority
Not affected

Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4698

Medium priority
Not affected

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4697

Medium priority
Not affected

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

9 affected packages

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

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4696

Medium priority
Not affected

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4695

Medium priority
Not affected

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

9 affected packages

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

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4694

Medium priority
Not affected

Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4693

Medium priority
Not affected

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-4692

Medium priority
Not affected

Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in 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 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages