roundcube: Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 are affected by IMAP command injection
CVE-2026-113386 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-113386, released October 24, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| roundcube · Debian 13.5 (trixie) | 1.6.20+dfsg-0+deb13u1 | DEBIAN-CVE-2026-113386 | Oct 24, 2026 |
| roundcube · Debian 14 | 1.6.20+dfsg-1 | DEBIAN-CVE-2026-113386 | Oct 24, 2026 |
| roundcubemail · opensuse-leap 16.0 | 1.6.20-bp160.1.1 | OPENSUSE-SU-2026:22195-1 | Nov 7, 2026 |
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