CVE-2026-48847 Details
Description
Roundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.
A vulnerability allowing pre-authentication arbitrary file deletion has been identified in Roundcube Webmail versions 1.6.x prior to 1.6.16 and 1.7.x prior to 1.7.1. This issue arises from a session poisoning bypass that exploits Redis or Memcache sessions.
Users are advised to update to Roundcube Webmail versions 1.6.16 or 1.7.1. Instructions for downloading these versions are available on the Roundcube GitHub releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 25, 2026CISA-ADP
Assessed May 26, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baa | [email protected] | Source CodeVendor |
| https://github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272a | [email protected] | Source CodeVendor |
| https://github.com/roundcube/roundcubemail/releases/tag/1.6.16 | [email protected] | Release NotesVendor |
| https://github.com/roundcube/roundcubemail/releases/tag/1.7.1 | [email protected] | Release NotesVendor |
| https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1 | [email protected] | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-669 | Incorrect Resource Transfer Between Spheres | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Roundcube | >= 1.6, < 1.6.16 >= 1.7, < 1.7.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 25, 2026 | New CVE Received | [email protected] |
Volerion