Information disclosure in Roundcube Webmail - #VU141376
Published: August 9, 2026
Vulnerability identifier: #VU141376
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose an authentication token to a user-controlled host.
The vulnerability exists due to exposure of sensitive information to an unauthorized actor in the modoboa driver when contacting a user-controlled host. A remote user can cause the password feature to contact a user-controlled host to disclose an authentication token.
Affected software
Roundcube Webmail
Remediation
Install security update from vendor's website.
Roundcube Webmail - addressed in versions 1.6.18, 1.7.3