PT-2026-29982 · Roundcube · Webmail

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-35543

Mitre

CVSS v3.1

5.3

Medium

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Fix

Weakness Enumeration

CWE-669

Related Identifiers

CVE-2026-35543

Affected Products

Webmail

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-35543 · Security Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 · Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 · Note
• https://github.com/roundcube/roundcubemail/commit/39471343ee081ce1d31696c456a2c163462daae3 · Note
• https://github.com/roundcube/roundcubemail/commit/1a63e01542bff42aaa71c00c4c279a09ef31f20c · Note
• https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 · Note
• https://github.com/roundcube/roundcubemail/commit/82ab5eca7b332fce7a174b2b987f0957a66377cd · Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 · Note