CVE-2026-35545 PUBLISHED

Assigner: mitre
Reserved: 03.04.2026 Published: 03.04.2026 Updated: 03.04.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS Score: 5.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Roundcube
Product	Webmail
Versions	Default: unaffected affected from 0 to 1.5.15 (excl.) affected from 1.6.0 to 1.6.15 (excl.)

References

https://roundcube.net/news/2026/03/29/security-updates-1.7-rc6-1.6.15-1.5.15
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc6
https://github.com/roundcube/roundcubemail/commit/7ad62de184368bf42c0f522d1aacc030f5ddcc46
https://github.com/roundcube/roundcubemail/releases/tag/1.6.15
https://github.com/roundcube/roundcubemail/commit/9d18d524f3cc211003fc99e2e54eed09a2f3da88
https://github.com/roundcube/roundcubemail/releases/tag/1.5.15
https://github.com/roundcube/roundcubemail/commit/fe1320b199d3a2f58351bb699c9ed4316e73221b

Problem Types

CWE-669 Incorrect Resource Transfer Between Spheres CWE