Medium severity6.1NVD Advisory· Published Jun 12, 2017· Updated May 13, 2026

CVE-2015-9096

Description

Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.

Affected products

Ruby Lang/Ruby
cpe:2.3:a:ruby-lang:ruby:*:rc1:*:*:*:*:*:*
Range: <=2.4.0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffeenvdPatchThird Party Advisory
www.mbsd.jp/Whitepaper/smtpi.pdfnvdExploitThird Party Advisory
github.com/rubysec/ruby-advisory-db/issues/215nvdIssue TrackingThird Party Advisory
hackerone.com/reports/137631nvdThird Party Advisory
lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlnvd
www.debian.org/security/2017/dsa-3966nvd

News mentions

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cvss	0.397
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000