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Vulnerability record · CVE-2026-35545 · published 3 April 2026

CVE-2026-35545: Roundcube webmail vulnerability

Roundcube · Webmail

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.

8.2 CVSS 3.1 High EPSS 0.55% · top 56.4% CWE-669 · CWE-669
8.2CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
24 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-35545), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.