| Name | CVE-2026-75006 |
| Description | In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, 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. This issue exists because of insufficient fixes for CVE-2026-35540, CVE-2026-48843 and CVE-2026-62643. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4760-1, DSA-6479-1 |
| Debian Bugs | 1144059 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| roundcube (PTS) | bullseye | 1.4.15+dfsg.1-1+deb11u4 | vulnerable |
| bullseye (security) | 1.4.15+dfsg.1-1+deb11u11 | fixed | |
| bookworm | 1.6.5+dfsg-1+deb12u9 | vulnerable | |
| bookworm (security) | 1.6.5+dfsg-1+deb12u11 | fixed | |
| trixie | 1.6.16+dfsg-0+deb13u1 | vulnerable | |
| trixie (security) | 1.6.18+dfsg-0+deb13u1 | fixed | |
| forky, sid | 1.6.18+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| roundcube | source | bullseye | 1.4.15+dfsg.1-1+deb11u11 | DLA-4760-1 | ||
| roundcube | source | bookworm | 1.6.5+dfsg-1+deb12u11 | DLA-4760-1 | ||
| roundcube | source | trixie | 1.6.18+dfsg-0+deb13u1 | DSA-6479-1 | ||
| roundcube | source | (unstable) | 1.6.18+dfsg-1 | 1144059 |
Fixed by: https://github.com/roundcube/roundcubemail/commit/8a92380b06b5df1481e034c4f40d6a6546c21223 (1.6.18)
Fixed by: https://github.com/roundcube/roundcubemail/commit/92f85c883594e5be757154f94548a9ba903455c9 (1.6.18)