Vulnerability · Published Oct 22, 2026 · Assigned by mitre
CVE-2026-114719
Low 3.7
In plain English
A low-severity cross-site request forgery in Webmail from Roundcube. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSRF validation bypass in the mark-as-junk action of the markasjunk plugin. The plugin read the _uid parameter from POST data but passed it to rcmail::get_uids() without constraining the input mode, so values re-read inside that helper could be taken from the query string and the action carried out without a valid CSRF token. Upstream fixed this in the commit “Fix CSRF validation bypass in the mark-as-junk action”, which passes rcube_utils::INPUT_POST explicitly.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | roundcube | no fix listed | DEBIAN-CVE-2026-114719 |
| Debian:13 | roundcube | 1.6.20+dfsg-0+deb13u1 | DEBIAN-CVE-2026-114719 |
| Debian:14 | roundcube | 1.6.20+dfsg-1 | DEBIAN-CVE-2026-114719 |
| Ubuntu:26.10 | roundcube | no fix listed | UBUNTU-CVE-2026-114719 |
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://bugs.debian.org/1151279 issue-tracking, third-party-advisory
- https://github.com/roundcube/roundcubemail/commit/6ea2bbe356099c9da98eabcfeafd8d6aa2d67b3d patch
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 vendor-advisory, release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 release-notes, patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 release-notes, patch
- https://github.com/roundcube/roundcubemail/commit/15b0dc0d6e5712310c8f663577361bf8132a7f81 patch