CVE-2026-114729

Name	CVE-2026-114729
Description	Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes `to`, `from` and values for URIs, but not `by`; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL `by` attribute”.
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	1151279

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
roundcube (PTS)	bookworm	1.6.5+dfsg-1+deb12u9	vulnerable
	bookworm (security)	1.6.5+dfsg-1+deb12u12	vulnerable
	trixie	1.6.18+dfsg-0+deb13u1	vulnerable
	trixie (security)	1.6.19+dfsg-0+deb13u1	vulnerable
	forky, sid	1.6.20+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)	1.6.20+dfsg-1			1151279

Notes

https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5
Fixed by: https://github.com/roundcube/roundcubemail/commit/2b6ff79d8b14f94b0ff04765b7f02dbfdfe98efa (1.6.20)