CVE-2026-48846
Medium
Description
In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() value in an e-mail message, which may lead to information disclosure or access-control bypass.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Webmail
PublishedMay 25, 2026
First seenMay 25, 2026
Weakness typeCWE-669CWE-669
How to fix
Update
- Roundcube Webmail1.6.16, 1.7.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Roundcube Webmail | 1.6.0 ≤ v < 1.6.16, 1.7.0 ≤ v < 1.7.1 | 1.6.16, 1.7.1 |
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