CVE-2026-114729
Fixed in a distro release EPSS <1%CVSS 5.3
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”.
Products: roundcube webmail
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | roundcube | no fix |
| Debian 13 | roundcube | 1.6.20+dfsg-0+deb13u1 |
| Debian 14 | roundcube | 1.6.20+dfsg-1 |
| Ubuntu 26.10 | roundcube | no fix |
| Ubuntu Pro 16.04 LTS | roundcube | no fix |
| Ubuntu Pro 18.04 LTS | roundcube | no fix |
| Ubuntu Pro 20.04 LTS | roundcube | no fix |
| Ubuntu Pro 22.04 LTS | roundcube | no fix |
| Ubuntu Pro 24.04 LTS | roundcube | no fix |
| Ubuntu Pro 26.04 LTS | roundcube | no fix |