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Vulnerability record · CVE-2026-62641 · published 14 July 2026

CVE-2026-62641: Roundcube webmail allocation without limits vulnerability

Roundcube · Webmail

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.

6.5 CVSS 3.1 Medium EPSS 0.47% · top 61.9% CWE-770 · Allocation without limits
6.5CVSS 3.1 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
20 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/roundcube/roundcubemail/commit/6d1004fd3764a9606c53130b322c0f295c38be64 Patch
https://github.com/roundcube/roundcubemail/commit/bf253c72d4293c93fda511b8464fe9cb34b522c1 Patch
https://github.com/roundcube/roundcubemail/releases/tag/1.6.17 Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.7.2 Release Notes
https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-62641), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.