| Name | CVE-2026-35538 |
| Description | An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search. |
| 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) |
| References | DLA-4517-1, DSA-6196-1 |
| Debian Bugs | 1131182 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| roundcube (PTS) | bullseye | 1.4.15+dfsg.1-1+deb11u4 | vulnerable |
| bullseye (security) | 1.4.15+dfsg.1-1+deb11u8 | fixed |
| bookworm | 1.6.5+dfsg-1+deb12u6 | vulnerable |
| bookworm (security) | 1.6.5+dfsg-1+deb12u8 | fixed |
| trixie | 1.6.13+dfsg-0+deb13u1 | vulnerable |
| trixie (security) | 1.6.15+dfsg-0+deb13u1 | fixed |
| forky, sid | 1.6.15+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
Fixed by: https://github.com/roundcube/roundcubemail/commit/5fe8a69956a9683a4269f3ad2a68e18deebf8a15 (1.7-rc5)
Fixed by: https://github.com/roundcube/roundcubemail/commit/b18a8fa8e81571914c0ff55d4e20edb459c6952c (1.6.14)
Regression fix: https://github.com/roundcube/roundcubemail/commit/6b137adda9b042c3742b0f968692e95ed367d3d1 (1.6.15)
Fixed by: https://github.com/roundcube/roundcubemail/commit/7daf5aa9c190ccc75bb31672d8fee9938877fd64 (1.5.14)
Regression fix: https://github.com/roundcube/roundcubemail/commit/c360f32adc8754aea91dcc347edcf394108ca110 (1.5.15)