roundcube/roundcubemail · Security
Roundcube Webmail: Bypass of remote image blocking via SVG content (with animate attributes) in an e-mail message
- GHSA ID
- GHSA-j2g6-8rvg-7mf6
- CVE ID
- CVE-2026-35543
- Severity
- medium
- Published
- Updated
- CVSS
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CVSS v3
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
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.
CWEs
- CWE-669 · Incorrect Resource Transfer Between Spheres
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35543 ↗
- https://github.com/roundcube/roundcubemail/commit/1a63e01542bff42aaa71c00c4c279a09ef31f20c ↗
- https://github.com/roundcube/roundcubemail/commit/39471343ee081ce1d31696c456a2c163462daae3 ↗
- https://github.com/roundcube/roundcubemail/commit/82ab5eca7b332fce7a174b2b987f0957a66377cd ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 ↗
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 ↗
- https://github.com/advisories/GHSA-j2g6-8rvg-7mf6 ↗