Remote Content Bypass Vulnerability in Roundcube Webmail by Roundcube
CVE-2026-114729

5.3MEDIUM

Key Information:

Vendor

Roundcube

Status
Webmail
Vendor
CVE Published:
22 October 2026

What is CVE-2026-114729?

A vulnerability in Roundcube Webmail exposes users to remote content being loaded without their consent due to an oversight in the inspection of SVG SMIL animation attributes. Specifically, the 'by' attribute was not checked by the rcube_washtml component, leading to potential disclosure of client IP addresses and indicating whether or not a message was opened. This issue has been addressed in recent updates to the software.

Affected Version(s)

Webmail 1.6.0 < 1.6.20

Webmail 1.7.0 < 1.7.5

References

https://bugs.debian.org/1151279
issue-trackingthird-party-advisory
https://github.com/roundcube/roundcubemail/commit/96d993b...
patch
https://roundcube.net/news/2026/10/19/security-updates-1....
vendor-advisoryrelease-notes

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.