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Fedora 44 Roundcube Webmail Important SVG Exploit Advisory 2026-6d293b6889

fedora
Calendar Grey April 25, 2026
Dist Fedora Esm H88
Roundcube Webmail update addresses critical SVG exploit risks, enhancing security for Fedora users.
Version 1.7-rc6 This is hopefully the last release candidate for the next major version 1.7 of Roundcube Webmail

Summary

RoundCube Webmail is a browser-based multilingual IMAP client

with an application-like user interface. It provides full

functionality you expect from an e-mail client, including MIME

support, address book, folder manipulation, message searching

and spell checking. RoundCube Webmail is written in PHP and

requires a database: MySQL, PostgreSQL and SQLite are known to

work. The user interface is fully skinnable using XHTML and

CSS 2.

Update Information:

Version 1.7-rc6 This is hopefully the last release candidate for the next major version 1.7 of Roundcube Webmail. It provides a fix to recently reported security vulnerability: SVG Animate FUNCIRI Attribute Bypass \u2014 Remote Image Loading via fill/filter/stroke, reported by class_nzm. We believe it is production ready, but we recommend to test it on a separate environment. Migrate existing configs with either the installto.sh or the update.sh scripts. And don't forget to backup your data before installing it! CHANGELOG Added support for arrays in smtp_user and smtp_pass config options (#10083) Added system health checker CLI script (#10106) Stricter recognition of an Ajax request (#10118) Password: Added Stalwart driver (#10114) Fix regression where some data url images could get ignored/lost (#10128) Fix SVG Animate FUNCIRI Attribute Bypass \u2014 Remote Image Loading via fill/filter/stroke

Change Log

* Mon Mar 30 2026 Remi Collet - 1.7~rc6-1 - update to 1.7-rc6

References


[ 1 ] Bug #2454784 - CVE-2026-35543 roundcubemail: Roundcube Webmail: Information disclosure and access-control bypass via animated SVG in email [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2454784 [ 2 ] Bug #2454786 - CVE-2026-35545 roundcubemail: Roundcube Webmail: Information disclosure and access-control bypass via SVG content in email. [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2454786 [ 3 ] Bug #2454793 - CVE-2026-35538 CVE-2026-35539 CVE-2026-35540 CVE-2026-35541 CVE-2026-35542 CVE-2026-35544 roundcubemail: various flaws [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2454793

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-6d293b6889' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
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Critical

Name: roundcubemail
Product: Fedora 44
Version: 1.7~rc6
Release: 1.fc44
Summary: Round Cube Webmail is a browser-based multilingual IMAP client

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