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CVE-2026-2775

Medium priority
Needs evaluation

Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2774

Medium priority
Needs evaluation

Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2773

Medium priority
Needs evaluation

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2772

Medium priority
Needs evaluation

Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2771

Medium priority
Needs evaluation

Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2770

Medium priority
Needs evaluation

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2769

Medium priority
Needs evaluation

Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2768

Medium priority
Needs evaluation

Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2767

Medium priority
Needs evaluation

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-2766

Medium priority
Needs evaluation

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

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

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages