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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-62643 ↗
- github.com/roundcube/roundcubemail/commit/294c7da6e7284166f040cef8607b677d459e0786 ↗
- github.com/roundcube/roundcubemail/commit/6d69e094d55d3a9a84dfb36edf6ca985311f0c1c ↗
- github.com/roundcube/roundcubemail/releases/tag/1.6.17 ↗
- github.com/roundcube/roundcubemail/releases/tag/1.7.2 ↗
- roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2 ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.