# CVE-2026-48846: roundcube: 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 vi...

CVE-2026-48846 is fixed in roundcube on 1 platform, first by DEBIAN-CVE-2026-48846, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-48846
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 25, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | roundcube Debian 12.15 (bookworm) | 1.6.5+dfsg-1+deb12u9 | [DEBIAN-CVE-2026-48846](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48846.md) | Jun 24, 2026 |
| Linux | roundcube Debian 13.5 (trixie) | 1.6.16+dfsg-0+deb13u1 | [DEBIAN-CVE-2026-48846](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48846.md) | Jun 24, 2026 |
| Linux | roundcube Debian 14 | 1.6.16+dfsg-1 | [DEBIAN-CVE-2026-48846](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48846.md) | Jun 24, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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