[ CVE-2026-114719 · Published 22 Oct 2026 ]
Vulnerability in Roundcube Webmail
CVSS 3.7
EPSS <1%1 agency advisoryNo fix listed yet
[ Description ]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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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BSI CERT-BundWID-SEC-2026-4043
Roundcube Webmail: Multiple vulnerabilities Translated from German
[ References ]References
- bugs.debian.org/1151279
- github.com/roundcube/roundcubemail/commit/15b0dc0d6e5712310c8f663577361bf8132a7f81
- github.com/roundcube/roundcubemail/commit/6ea2bbe356099c9da98eabcfeafd8d6aa2d67b3d
- github.com/roundcube/roundcubemail/releases/tag/1.6.20
- github.com/roundcube/roundcubemail/releases/tag/1.7.5
- roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5