CVE-2026-62641: Medium severity Roundcube Roundcube Webmail vulnerability
Published Jul 14, 2026
·Updated
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 Software
3 affected components
Roundcube Roundcube Webmail<1.6.17, >=1.7.0<1.7.2
Roundcube Webmail>=1.6.0<1.6.17
Roundcube Webmail>=1.7.0<1.7.2
Remediation
Event History
Jul 14, 2026
CVE Published
via MITRE·03:46 PM
Data Sourced
via MITRE·03:46 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-62641?
The severity of CVE-2026-62641 is rated as medium with a score of 4.3.
2
What impact does CVE-2026-62641 have on Roundcube Webmail?
CVE-2026-62641 can cause denial of service in Roundcube Webmail due to an issue in the TNEF decoder from crafted compressed-RTF files.
3
Which versions of Roundcube Webmail are affected by CVE-2026-62641?
CVE-2026-62641 affects Roundcube Webmail versions before 1.6.17 and 1.7.x before 1.7.2.
4
How do I fix CVE-2026-62641?
To fix CVE-2026-62641, users should update to Roundcube Webmail version 1.6.17 or 1.7.2 or later.
5
What is the nature of the vulnerability in CVE-2026-62641?
CVE-2026-62641 is a denial of service vulnerability related to the handling of compressed-RTF sizes in the TNEF decoder.