Incomplete Blacklist Affecting roundcube package, versions <1.6.20+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-ROUNDCUBE-21431202
- published22 Oct 2026
- disclosed22 Oct 2026
Introduced: 22 Oct 2026
NewCVE-2026-114728 (opens in a new tab)How to fix?
Upgrade Debian:unstable roundcube to version 1.6.20+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream roundcube package and not the roundcube package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-114728
- 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://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5