Description
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, 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. NOTE: this issue exists because of insufficient fixes for CVE-2026-35540 and CVE-2026-48843.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Roundcube Webmail
Default version status: unaffected
1.6.0 to < 1.6.17affected1.7.0 to < 1.7.2affected
References
- https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.2 ↗
- https://github.com/roundcube/roundcubemail/commit/6d69e094d55d3a9a84dfb36edf6ca985311f0c1c ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.17 ↗
- https://github.com/roundcube/roundcubemail/commit/294c7da6e7284166f040cef8607b677d459e0786 ↗