| Name | CVE-2026-126813 |
| Description | Roundcube Webmail before 1.6.21 and 1.7.x before 1.7.6 contains an IMAP command injection vulnerability that allows attackers to inject commands via CRLF in the _uid parameter when messages_cache is enabled. Attackers can lure logged-in victims into opening crafted GET links to mail/show or mail/get, executing IMAP commands that delete messages, change flags, or grant mailbox access via SETACL. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1153803 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| roundcube (PTS) | bookworm | 1.6.5+dfsg-1+deb12u9 | vulnerable |
| bookworm (security) | 1.6.5+dfsg-1+deb12u12 | vulnerable | |
| trixie | 1.6.18+dfsg-0+deb13u1 | vulnerable | |
| trixie (security) | 1.6.20+dfsg-0+deb13u1 | vulnerable | |
| forky | 1.6.20+dfsg-1 | vulnerable | |
| sid | 1.6.21+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| roundcube | source | (unstable) | 1.6.21+dfsg-1 | 1153803 |
https://roundcube.net/news/2026/11/09/security-updates-1.6.21-and-1.7.6
https://github.com/roundcube/roundcubemail/commit/4cb1cf106b9ca5d465ed4924f2fab5d5108edfeb (1.6.21)
https://github.com/roundcube/roundcubemail/commit/d1dda13597ceed9df49d434a8d88b758bcf6ef5c (1.7.6)
https://github.com/roundcube/roundcubemail/commit/2ea63692178cab5cea486c7c630901b7f6852c80 (master)