Roundcube Webmail: Remote image blocking feature can be bypassed via SVG content in an e-mail message
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | roundcube/roundcubemail | >= 1.7-beta, < 1.7-rc5 | 1.7-rc5 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35545
- https://github.com/roundcube/roundcubemail/commit/7ad62de184368bf42c0f522d1aacc030f5ddcc46
- https://github.com/roundcube/roundcubemail/commit/9d18d524f3cc211003fc99e2e54eed09a2f3da88
- https://github.com/roundcube/roundcubemail/commit/fe1320b199d3a2f58351bb699c9ed4316e73221b
- https://github.com/roundcube/roundcubemail
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.15
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.15
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc6
- https://roundcube.net/news/2026/03/29/security-updates-1.7-rc6-1.6.15-1.5.15
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-669- Platform
- Composer
- Package
roundcube/roundcubemail- Disclosed
- 03.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w846-74jr-76cv - CC BY 4.0
Vulnerability history: roundcube/roundcubemail
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 06.2025 04.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- Critical 1
- Medium 7
- Low 2
Disclosures per year
- 2025: 1
- 2026: 9
-
Roundcube Webmail: Remote image blocking feature can be bypassed via SVG content in an e-mail message this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.