Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection. A remote authenticated attacker can exploit this via CRLF sequences injected into the _uid parameter of the mail/headers and mail/viewsource actions to execute arbitrary IMAP commands.
History

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
Title IMAP Command Injection via CRLF in Roundcube Webmail

Tue, 20 Oct 2026 05:00:00 +0000

Type Values Removed Values Added
Description Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection. A remote authenticated attacker can exploit this via CRLF sequences injected into the _uid parameter of the mail/headers and mail/viewsource actions to execute arbitrary IMAP commands.
First Time appeared Roundcube
Roundcube webmail
Weaknesses CWE-93
CPEs cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Vendors & Products Roundcube
Roundcube webmail
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-10-20T04:53:46.220Z

Updated: 2026-10-22T21:17:14.176Z

Reserved: 2026-10-20T04:53:45.817Z

Link: CVE-2026-113386

cve-icon Vulnrichment

Updated: 2026-10-22T21:17:09.906Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T05:16:54.250

Modified: 2026-10-22T22:18:03.430

Link: CVE-2026-113386

cve-icon Redhat

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