CVE-2026-113386 Roundcube Webmail - Command Injection

Roundcube Webmail < 1.6.20 and 1.7.x < 1.7.5 contain an IMAP command injection caused by CRLF sequences injected into the _uid parameter in mail/headers and mail/viewsource actions, letting remote authenticated attackers execute arbitrary IMAP commands.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
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