High severity7.1NVD Advisory· Published Oct 20, 2026
CVE-2026-113386
CVE-2026-113386
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.
Affected products
1- Range: <1.6.20, <1.7.5
Patches
Vulnerability mechanics
References
7- bugs.debian.org/1151279nvd
- github.com/roundcube/roundcubemail/commit/004adaaeca4f6799715a54d12e3f657f19efcc9anvd
- github.com/roundcube/roundcubemail/commit/bf5bc0266a8cd16be6b640409e64a6c6c2705049nvd
- github.com/roundcube/roundcubemail/commit/f62879defc0330ae240c72b83b2d00a8ab337447nvd
- github.com/roundcube/roundcubemail/releases/tag/1.6.20nvd
- github.com/roundcube/roundcubemail/releases/tag/1.7.5nvd
- roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5nvd
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