CVE-2026-2769 in Firefox

Sumário

de MITRE • 24/02/2026

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.

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• Responsável: Mozilla
• Reservar: 19/02/2026
• Divulgação: 24/02/2026
• Moderação: aceite
• Entrada: VDB-347560
• CPE: pronto
• CWE: CWE-416 (confirmado)
• CVSS: 8.8 (CISA-ADP)
• EPSS: 0.00419
• KEV: não
• Atividades: muito baixo
• Sector: Government, Energy, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-2769
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2769
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-2769/