Is CVE-2026-75006 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-75006?

CVE-2026-75006 has a CVSS v3 severity of MEDIUM (5.8).

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CVE-2026-75006

Description

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. This issue exists because of insufficient fixes for CVE-2026-35540, CVE-2026-48843 and CVE-2026-62643.