CVE-2026-114717

MediumCVSS 4.0/10Last modified Oct 22, 2026

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.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-99

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
RoundcubeWebmail>= 1.6.0, < 1.6.20; >= 1.7.0, < 1.7.5

References

Timeline

Published
Oct 22, 2026
Last modified
Oct 22, 2026
NVD status
Undergoing Analysis

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