Roundcube Incorrect Resource Transfer Between Spheres Vulnerability - CVE-2026-35545
An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeNamefill/filter/stroke.