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The 15 most recently published vulnerabilities affecting mozilla.

• CVE-2026-53900Cookie injection was possible when opening a PDF link4.3Jun 16, 2026
• CVE-2026-53899Cross-origin cookies could be leaked when opening a PDF link6.5Jun 16, 2026
• CVE-2026-12330Incorrect boundary conditions in the Internationalization component5.4Jun 16, 2026
• CVE-2026-12329Memory safety bug fixed in Thunderbird ESR 140.125.3Jun 16, 2026
• CVE-2026-12328Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 1528.1Jun 16, 2026
• CVE-2026-12327Memory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 1528.1Jun 16, 2026
• CVE-2026-12326Memory safety bugs fixed in Firefox 152 and Thunderbird 1528.1Jun 16, 2026
• CVE-2026-12325Denial-of-service in the Graphics: ImageLib component6.5Jun 16, 2026
• CVE-2026-12324Incorrect boundary conditions in the Graphics: CanvasWebGL component7.3Jun 16, 2026
• CVE-2026-12323Spoofing issue in the DOM: Core & HTML component5.4Jun 16, 2026
• CVE-2026-12322Clickjacking issue in the Widget: Gtk component5.4Jun 16, 2026
• CVE-2026-12321JIT miscompilation in the JavaScript: WebAssembly component5.4Jun 16, 2026
• CVE-2026-12320Information disclosure in the Password Manager component4.3Jun 16, 2026
• CVE-2026-12319Denial-of-service in the Audio/Video: Playback component6.5Jun 16, 2026
• CVE-2026-12318Incorrect boundary conditions in the Libraries component in NSS7.3Jun 16, 2026