CVE-2026-114717 | 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 forwar
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.
- 🔗 bugs.debian.org/1151279
- 🔗 github.com/roundcube/roundcubemail/commit/4c3291ce9d…
- 🔗 roundcube.net/news/2026/10/19/security-updates-1.6.20-a…
- 🔗 github.com/roundcube/roundcubemail/releases/tag/1.7.…
- 🔗 github.com/roundcube/roundcubemail/releases/tag/1.6.…
- 🔗 github.com/roundcube/roundcubemail/commit/c325953a25…
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