Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | >= 1.6.0, < 1.6.20 |
Related Weaknesses (CWE)
References
- https://bugs.debian.org/1151279Third Party AdvisoryMailing List
- https://github.com/roundcube/roundcubemail/commit/4c3291ce9df9e1d3b45330d0854d65Patch
- https://github.com/roundcube/roundcubemail/commit/c325953a251d0132f1909569b3eac0Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5Release Notes
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5Issue Tracking
FAQ
What is CVE-2026-114717?
CVE-2026-114717 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 ...
How severe is CVE-2026-114717?
CVE-2026-114717 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114717?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail.