CVE-2026-114717Roundcube 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.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 4.0 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
- Weakness (CWE)
- CWE-99
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Received
- Record last updated
- Oct 22, 2026
- First seen by InfoSec Signals
- Oct 22, 2026
Affected products
Roundcube Webmail roundcube:webmail (from the name) | from 1.6.0 before 1.6.20; from 1.7.0 before 1.7.5 | CNA record |
References
- https://bugs.debian.org/1151279issue-tracking, third-party-advisory
- https://github.com/roundcube/roundcubemail/commit/4c3291ce9df9e1d3b45330d0854d65cd8efbeee9patch
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5vendor-advisory, release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5release-notes, patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20release-notes, patch
- https://github.com/roundcube/roundcubemail/commit/c325953a251d0132f1909569b3eac0b974095dd4patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.