Server-Side Request Forgery (SSRF) in Roundcube Webmail - #VU136904
Published: July 5, 2026
Vulnerability identifier: #VU136904
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to access internal network resources.
The vulnerability exists due to improper input validation in the ssrf protection for local address urls when handling user-supplied urls. A remote attacker can supply a crafted local address url to access internal network resources.
Affected software
Roundcube Webmail
Remediation
Install security update from vendor's website.
Roundcube Webmail - addressed in versions 1.6.17, 1.7.2