PT-2026-29984 · Roundcube · Webmail

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-35545

Mitre

CVSS v3.1

5.3

Medium

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

An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeName=fill/filter/stroke.

Fix

Weakness Enumeration

CWE-669

Related Identifiers

CVE-2026-35545

Affected Products

Webmail

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-35545 · Security Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.6.15 · Note
• https://github.com/roundcube/roundcubemail/commit/fe1320b199d3a2f58351bb699c9ed4316e73221b · Note
• https://github.com/roundcube/roundcubemail/commit/9d18d524f3cc211003fc99e2e54eed09a2f3da88 · Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.5.15 · Note
• https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc6 · Note
• https://github.com/roundcube/roundcubemail/commit/7ad62de184368bf42c0f522d1aacc030f5ddcc46 · Note
• https://roundcube.net/news/2026/03/29/security-updates-1.7-rc6-1.6.15-1.5.15 · Note