CVE-2026-114717: medium-severity vulnerability in Roundcube Webmail
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4epss 0.4%
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability when a message is forwarded as an attachment. The subject of the forwarded message was used verbatim to generate the attachment name, so a received message whose subject contains CRLF sequences could inject arbitrary MIME part headers into the outgoing message. Upstream fixed this in the commit “Fix mail header injection via subject of a message forwarded as attachment”, which collapses whitespace in the generated name.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Affected products
Roundcube · WebmailRelated CVEs — Roundcube Webmail
In the same product, most dangerous first.
References
https://bugs.debian.org/1151279https://github.com/roundcube/roundcubemail/commit/4c3291ce9df9e1d3b45330d0854d65cd8efbeee9https://github.com/roundcube/roundcubemail/commit/c325953a251d0132f1909569b3eac0b974095dd4https://github.com/roundcube/roundcubemail/releases/tag/1.6.20https://github.com/roundcube/roundcubemail/releases/tag/1.7.5https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5