CVE-2026-114720
HIGH
7,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: high
Availability: none
Description
AI Translation Available
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.
93
Improper Neutralization of CRLF Sequences ('CRLF Injection')
DraftCommon Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Modify Application Data
Applicable Platforms
All platforms may be affected
https://bugs.debian.org/1151279
https://github.com/roundcube/roundcubemail/commit/242c6d6a150c850bd96d20d400261…
https://github.com/roundcube/roundcubemail/commit/6c3c1897c11e193e47fccaabc87e9…
https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5