
CVE catalog
CVE-2026-114728
roundcube: CVE-2026-114728
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.38% · Oct 25, 2026
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass in the handling of FuncIRI attributes. rcube_washtml detected the CSS url() token with a pattern that enumerated only some of its escaped spellings, so values using other CSS escape sequences, for example \000075rl( or u\72 l(, were not recognized and remote content was loaded from an HTML message without the user's consent. Upstream fixed this in the commit “Fix remote content blocking bypass via CSS escapes in FuncIRI attributes (again)”, which resolves CSS escapes before matching and also inspects the `to`, `from` and `by` attributes.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | roundcube | sid | 1.6.20+dfsg-1 | fixed |
| Debian | roundcube | forky | 1.6.20+dfsg-1 | fixed |
| Debian | roundcube | trixie | 1.6.18+dfsg-0+deb13u1 | vulnerable |
| Debian | roundcube | trixie-security | 1.6.20+dfsg-0+deb13u1 | fixed |
| Debian | roundcube | bookworm | 1.6.5+dfsg-1+deb12u9 | vulnerable |
| Debian | roundcube | bookworm-security | 1.6.5+dfsg-1+deb12u12 | vulnerable |
| Ubuntu | roundcube | pro | 1.6.11+dfsg-1 | vulnerable |
| Ubuntu | roundcube | pro | 1.6.11+dfsg-1ubuntu0.26.04.1~esm1 | vulnerable |
| Ubuntu | roundcube | 26.10 | 1.6.11+dfsg-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | roundcube | source | sid | 1.6.20+dfsg-1 | not yet assigned | Not reported | [1151279] |
| Debian | roundcube | source | forky | 1.6.20+dfsg-1 | not yet assigned | Not reported | [1151279] |
| Debian | roundcube | source | trixie | 1.6.20+dfsg-0+deb13u1 | not yet assigned | Not reported | [1151279] |
| Debian | roundcube | source | bookworm | (unfixed) | not yet assigned | Not reported | [1151279] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [roundcube]Affected
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
- [roundcube-core]Affected
Source package: [roundcube]
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
- [roundcube-mysql]Affected
Source package: [roundcube]
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
- [roundcube-pgsql]Affected
Source package: [roundcube]
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
- [roundcube-plugins]Affected
Source package: [roundcube]
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
- [roundcube-sqlite3]Affected
Source package: [roundcube]
Details (4)
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u9· all · bookwormAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
1.6.5+dfsg-1+deb12u11· all · bookworm-securityAffected
dsa · roundcube · debian · bookworm; dsa · roundcube · debian · 12
[Debian 13 (Trixie)]
- [roundcube]Affected
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
- [roundcube-core]Affected
Source package: [roundcube]
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
- [roundcube-mysql]Affected
Source package: [roundcube]
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
- [roundcube-pgsql]Affected
Source package: [roundcube]
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
- [roundcube-plugins]Affected
Source package: [roundcube]
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
- [roundcube-sqlite3]Affected
Source package: [roundcube]
Details (7)
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.16+dfsg-0+deb13u1· all · trixieAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.17+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.18+dfsg-0+deb13u1· all · trixie-securityAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.19+dfsg-0+deb13u1· all · trixie-security · Historical versionAffected · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
1.6.20+dfsg-0+deb13u1· all · trixie-securityFixed · Fixed:
1.6.20+dfsg-0+deb13u1dsa · roundcube · debian · 13
Observed:
References
- [https://bugs.debian.org/1151279]
- [https://github.com/roundcube/roundcubemail/commit/2f74267f0e13bed7182b1d2294cc4f3c5c46dcee]
- [https://github.com/roundcube/roundcubemail/commit/ff4fcfdd2952f9d09947cc9c18137f381f27caf1]
- [https://github.com/roundcube/roundcubemail/releases/tag/1.6.20]
- [https://github.com/roundcube/roundcubemail/releases/tag/1.7.5]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-114728]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-114728]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-114728]
- [https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5]
- [https://security-tracker.debian.org/tracker/CVE-2026-114728]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]