CVE-2026-113386
HIGH
CVSS 7.1
Published: 2026-10-20
Modified: 2026-10-20
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-113386 |
| CVSS Score | 7.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N |
| Published | 2026-10-20 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://bugs.debian.org/1151279
- https://github.com/roundcube/roundcubemail/commit/004adaaeca…
- https://github.com/roundcube/roundcubemail/commit/bf5bc0266a…
- https://github.com/roundcube/roundcubemail/commit/f62879defc…
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.…
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.…
- https://roundcube.net/news/2026/10/19/security-updates-1.6.2…