CVE-2026-48846
6.5
MEDIUM
CVSS 3.1
EPSS 0.34%
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.
How to fix CVE-2026-48846
To remediate CVE-2026-48846, upgrade the affected package to a fixed version below.
- Debian/roundcube—upgrade to 1.4.15+dfsg.1-1+deb11u9 or later
Is CVE-2026-48846 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.4.15+dfsg.1-1+deb11u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |