CVE-2026-74997

NameCVE-2026-74997
DescriptionIn Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values. This issue only affects Roundcube instances using the markasjunk plugin with its cmd_learn driver.
SourceCVE (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 Bugs1144059

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
roundcube (PTS)bullseye1.4.15+dfsg.1-1+deb11u4vulnerable
bullseye (security)1.4.15+dfsg.1-1+deb11u10vulnerable
bookworm1.6.5+dfsg-1+deb12u9vulnerable
bookworm (security)1.6.5+dfsg-1+deb12u10vulnerable
trixie1.6.16+dfsg-0+deb13u1vulnerable
trixie (security)1.6.17+dfsg-0+deb13u1vulnerable
forky, sid1.6.18+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
roundcubesource(unstable)1.6.18+dfsg-11144059

Notes

Fixed by: https://github.com/roundcube/roundcubemail/commit/b8f90e28a46d42e79a69568cba897f8f4223d9cd (1.6.18)
Follow-up: https://github.com/roundcube/roundcubemail/commit/495d211638f222336b20f4744545c53712426c2a (1.6.18)

Search for package or bug name: Reporting problems