CVE-2026-62641: Roundcube Webmail

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size.

Affected products

• Roundcube Webmail: from 1.6.0, before 1.6.17 (fixed in 1.6.17); from 1.7.0, before 1.7.2 (fixed in 1.7.2)

Published 2026-07-14. Last modified 2026-07-20.