CVE-2026-114720
High · 7.1CVSS
7.1
EPSS
0.8%
Published
Oct 22, 2026
CISA due date
—
The record
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an IMAP command injection vulnerability. A remote authenticated attacker can exploit this via CRLF sequences injected into the _flag parameter of the mail/mark action to execute arbitrary IMAP commands. Upstream fixed this in the commit “Fix IMAP command injection via CRLF in `_flag` parameter of mail/mark action”, which rejects flags containing control, whitespace and IMAP-special characters.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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