CVE-2026-35543
Roundcube Webmail: Bypass of remote image blocking via SVG content (with animate attributes) in an e-mail message
5.3
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via SVG content (with animate attributes) in an e-mail message. This may lead to information disclosure or access-control bypass.
How to fix CVE-2026-35543
To remediate CVE-2026-35543, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.15+dfsg.1-1+deb11u8 or later
- —upgrade to 1.7-rc5 or later
Is CVE-2026-35543 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.4.15+dfsg.1-1+deb11u8
- >= 1.7-beta, < 1.7-rc5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |