GitHub Advisoryadvisory · Packagist
GHSA-j2g6-8rvg-7mf6 Roundcube Webmail: Bypass of remote image blocking via SVG content (with animate attributes) in an e-mail message
MEDIUM
Official page ↗
- Aliases
- CVE-2026-35543
- Ecosystem
- Packagist
- Packages
- roundcube/roundcubemail
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-669
- Reviewed
- 2026-04-04
Affected packages
• Packagist roundcube/roundcubemail: >= 1.7-beta, < 1.7-rc5 → fixed in 1.7-rc5
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.
Related
Alias · CVE (1)
- CVE-2026-35543 An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. vulnerability
Weakness · CWE (1)
- CWE-669 Incorrect Resource Transfer Between Spheres weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35543 advisory
- https://github.com/roundcube/roundcubemail/commit/1a63e01542bff42aaa71c00c4c279a09ef31f20c web
- https://github.com/roundcube/roundcubemail/commit/39471343ee081ce1d31696c456a2c163462daae3 web
- https://github.com/roundcube/roundcubemail/commit/82ab5eca7b332fce7a174b2b987f0957a66377cd web
- https://github.com/roundcube/roundcubemail package
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 web
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 web
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 web
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 web