CVE-2026-62643

Name	CVE-2026-62643
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.
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)
Debian Bugs	1141495

Vulnerable and fixed packages

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+deb11u9	vulnerable
	bookworm, bookworm (security)	1.6.5+dfsg-1+deb12u9	vulnerable
	trixie (security), trixie	1.6.16+dfsg-0+deb13u1	vulnerable
	forky, sid	1.6.17+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	(unstable)	1.6.17+dfsg-1			1141495

https://github.com/roundcube/roundcubemail/commit/294c7da6e7284166f040cef8607b677d459e0786 (1.6.17)