CVE-2026-114720
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 22, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 22, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N | mitre |
Weaknesses
- CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
Affected Products
| Product | Versions |
|---|---|
WebmailRoundcube |
|
References
- https://bugs.debian.org/1151279issue-trackingthird-party-advisory
- https://github.com/roundcube/roundcubemail/commit/6c3c1897c11e193e47fccaabc87e9ca2a0a73e51patch
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5vendor-advisoryrelease-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5release-notespatch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20release-notespatch
- https://github.com/roundcube/roundcubemail/commit/242c6d6a150c850bd96d20d400261e71f8d11f9bpatch
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