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
| Link | Resource |
|---|---|
| https://bugs.debian.org/1151279 | Third Party Advisory Mailing List |
| https://github.com/roundcube/roundcubemail/commit/2f74267f0e13bed7182b1d2294cc4f3c5c46dcee | Patch |
| https://github.com/roundcube/roundcubemail/commit/ff4fcfdd2952f9d09947cc9c18137f381f27caf1 | Patch |
| https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 | Release Notes |
| https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 | Release Notes |
| https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 | Issue Tracking Release Notes |
Configurations
Configuration 1 (hide)
|
History
29 Oct 2026, 13:51
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Roundcube
Roundcube webmail |
|
| CPE | cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* | |
| References | () https://bugs.debian.org/1151279 - Third Party Advisory, Mailing List | |
| References | () https://github.com/roundcube/roundcubemail/commit/2f74267f0e13bed7182b1d2294cc4f3c5c46dcee - Patch | |
| References | () https://github.com/roundcube/roundcubemail/commit/ff4fcfdd2952f9d09947cc9c18137f381f27caf1 - Patch | |
| References | () https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 - Release Notes | |
| References | () https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 - Release Notes | |
| References | () https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 - Issue Tracking, Release Notes |
22 Oct 2026, 02:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-22 02:17
Updated : 2026-10-29 13:51
NVD link : CVE-2026-114728
Mitre link : CVE-2026-114728
CVE.ORG link : CVE-2026-114728
JSON object : View
Products Affected
roundcube
- webmail
CWE
CWE-184
Incomplete List of Disallowed Inputs
