CVE-2026-48847

LOW

Roundcube Webmail - Incorrect Resource Transfer Between Spheres

Title source: rule

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.

References (5)

Core 5

Core References

https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1

https://github.com/roundcube/roundcubemail/releases/tag/1.7.1

https://github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc729dd8ef272a

View Patch ZIP pw:eip

https://github.com/roundcube/roundcubemail/releases/tag/1.6.16

https://github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e346b02f56baa

View Patch ZIP pw:eip

Scores

CVSS v3 3.7

EPSS 0.0040

EPSS Percentile 31.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-669

Status published

Products (2)

Roundcube/Webmail 1.6.0 - 1.6.16

Roundcube/Webmail 1.7.0 - 1.7.1

Published May 25, 2026

Tracked Since May 26, 2026