Bug 2481254 (CVE-2026-48843) - CVE-2026-48843 roundcubemail: information disclosure and Server-Side Request Forgery via insufficient CSS sanitization
Summary: CVE-2026-48843 roundcubemail: information disclosure and Server-Side Request ...
Keywords:
Status: NEW
Alias: CVE-2026-48843
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2481619 2481620
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-25 20:01 UTC by OSIDB Bzimport
Modified: 2026-05-26 18:13 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-05-25 20:01:18 UTC 
Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. The issue stems from an insufficient fix for CVE-2026-35540.
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