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OpenAdvisories
Medium · 5.3 CVE-2026-35543 EUVD-2026-18589GHSA-j2g6-8rvg-7mf6

Roundcube Webmail: Bypass of remote image blocking via SVG content (with animate attributes) in an e-mail message

Published Apr 3, 2026 · Updated Apr 3, 2026 · Assigned by mitre

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.

Affected products

VendorProductAffectedFixed
Roundcube Webmail < 1.5.14, 1.6.0 – < 1.6.14 1.5.14

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 roundcube 1.6.14+dfsg-1 —
Debian 13 roundcube 1.6.15+dfsg-0+deb13u1 —
Debian 12 roundcube 1.6.5+dfsg-1+deb12u8 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 roundcube No fix yet —
Ubuntu 25.10 roundcube No fix yet —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 26.04 LTS roundcube No fix yet —
Ubuntu Pro 24.04 LTS roundcube No fix yet —
Ubuntu Pro 22.04 LTS roundcube No fix yet —
Ubuntu Pro 20.04 LTS roundcube No fix yet —
Ubuntu Pro 18.04 LTS roundcube No fix yet —
Ubuntu Pro 16.04 LTS roundcube No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist roundcube/roundcubemail >= 1.7-beta, < 1.7-rc5 1.7-rc5 GHSA-j2g6-8rvg-7mf6

Advisories 1

References