CVE-2026-0878

HIGH

8.0

Descricao

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Detalhes CVE

Pontuacao CVSS v3.18.0

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioREQUIRED

Publicado1/13/2026

Ultima modificacao1/22/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

mozilla:firefoxmozilla:thunderbird

Fraquezas (CWE)

CWE-20CWE-119

Referencias

https://bugzilla.mozilla.org/show_bug.cgi?id=2003989(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-01/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-03/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-04/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-05/(security@mozilla.org)

Correlacoes IOC

Sem correlacoes registradas

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