CVE-2026-114726

Medium 5.8

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability in the Bounce (resend) action. rcube_mime::decode_address_list() did not strip control characters from the decoded display name, so a received message whose From display-name carries CRLF sequences in an encoded word could inject arbitrary headers into the message emitted when the user bounces it. Upstream fixed this in the commit “Fix mail header injection via the From display-name in the Bounce (resend) action”.

Assigner
mitre
Published
2026-10-22
Updated
2026-10-22
Reserved
2026-10-22

Scores

SourceCVSSScoreSeverityVector
mitre3.15.8MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Weaknesses

Affected

VendorProductVersions
Roundcube Webmail 1.6.0 to < 1.6.20 (affected)
1.7.0 to < 1.7.5 (affected)
others: unaffected

References

Full CVE JSON record (5.2)

API · GitHub · cve.org

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