CVE-2026-113386

Published: Oct 20, 2026Modified: Oct 22, 2026

7.1

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Exploitability: 2.8 / Impact: 4.2

Source: MITRE (Secondary)

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.

Related CWEs

Improper Neutralization of CRLF Sequences ('CRLF Injection')

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

References (7)

https://bugs.debian.org/1151279

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f657f19efcc9a

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6c6c2705049

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/commit/f62879defc0330ae240c72b83b2d00a8ab337447

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/releases/tag/1.6.20

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/releases/tag/1.7.5

Source: cve@mitre.org

https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5

Source: cve@mitre.org

Timeline

No history available yet.