CVE-2026-0890 in Firefox

Sumário

de VulDB • 18/06/2026

Problema de spoofing no DOM: componente Copiar & Colar e Arrastar & Soltar. Esta vulnerabilidade afeta o Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147 e Thunderbird < 140.7.

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• Responsável: Mozilla
• Reservar: 13/01/2026
• Divulgação: 13/01/2026
• Moderação: aceite
• Entrada: VDB-340589
• CPE: pronto
• CWE: CWE-1021 (confirmado)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00261
• KEV: não
• Atividades: muito baixo
• Sector: Insurance, Finance, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-0890
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0890
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-0890/