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CVE Watch1 sept 2026

CVE-2026-84642

The values of the mail.allowed_attachment_hostnames advanced config setting were used in a regular expression without escaping. For some pos

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 1 sept 2026 · Última mod.: 1 sept 2026

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

The values of the mail.allowed_attachment_hostnames advanced config setting were used in a regular expression without escaping. For some possible valid hostnames, this could allow certain unintended hostnames to also match and serve remote attachments. This vulnerability was fixed in Thunderbird 155 and Thunderbird 153.2.

Referencias oficiales
CVEs relacionados

Sin CVEs relacionados por CWE o producto.