CVE-2026-48847
Roundcube Webmail Redis/Memcache File Deletion Vulnerability
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.
INFO
Published Date :
May 25, 2026, 8:16 p.m.
Last Modified :
May 26, 2026, 7:26 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | 8254265b-2729-46b6-b9e3-3dfca2d5bfca | ||||
| CVSS 3.1 | LOW | MITRE-CVE | ||||
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update Roundcube Webmail to version 1.6.16 or later.
- Update Roundcube Webmail to version 1.7.1 or later.
Public PoC/Exploit Available at Github
CVE-2026-48847 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-48847.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-48847 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-48847
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-48847 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-48847 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
May. 25, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-669 Added Reference https://github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baa Added Reference https://github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272a Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.6.16 Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.7.1 Added Reference https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1