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CVE-2026-84130

Medium priority
Vulnerable

Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84129

Medium priority
Vulnerable

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84128

Medium priority
Vulnerable

Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84127

Medium priority
Vulnerable

Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84126

Medium priority
Vulnerable

Incorrect boundary conditions in the Layout: Grid component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84125

Medium priority
Vulnerable

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84124

Medium priority
Vulnerable

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84123

Medium priority
Vulnerable

Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84122

Medium priority
Vulnerable

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages

CVE-2026-84121

Medium priority
Vulnerable

Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

9 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Vulnerable
mozjs38 Not in release Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored
mozjs78 Not in release Not in release Ignored
mozjs91 Not in release Not in release Ignored
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
Show all 9 packages Show less packages